ID: 806151

tert-butyl (3S)-3-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxyla...			$$$$
M. F.	C18H22F6N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23457 Database Data ID
M. W.	412.3698992
CAS
Similarity	N/A

ID: 806152

tert-butyl (3R)-3-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxyla...			$$$$
M. F.	C18H22F6N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23458 Database Data ID
M. W.	412.3698992
CAS
Similarity	N/A

ID: 806153

tert-butyl 2-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxylate			$$$$
M. F.	C18H22F6N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23459 Database Data ID
M. W.	412.3698992
CAS
Similarity	N/A

ID: 806154

tert-butyl (2S)-2-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxyla...			$$$$
M. F.	C18H22F6N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23460 Database Data ID
M. W.	412.3698992
CAS
Similarity	N/A

ID: 806155

tert-butyl (2R)-2-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxyla...			$$$$
M. F.	C18H22F6N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23461 Database Data ID
M. W.	412.3698992
CAS
Similarity	N/A

ID: 806156

4-amino-3-[(propan-2-yl)amino]benzoic acid			$$$$
M. F.	C10H14N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23476 Database Data ID
M. W.	194.23036
CAS	467235-04-7
Similarity	N/A

ID: 806157

2-chloro-5-(1,3-dioxolan-2-yl)pyridine			$$$$
M. F.	C8H8ClNO2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23477 Database Data ID
M. W.	185.60762
CAS
Similarity	N/A

ID: 806158

(2-hydroxy-3-methylphenyl)boronic acid			$$$$
M. F.	C7H9BO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23487 Database Data ID
M. W.	151.95556
CAS	259209-22-8
Similarity	N/A

ID: 806159

(3-chloro-2-hydroxyphenyl)boronic acid			$$$$
M. F.	C6H6BClO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23489 Database Data ID
M. W.	172.37404
CAS	951655-50-8
Similarity	N/A

ID: 806160

(2-hydroxy-3-methoxyphenyl)boronic acid			$$$$
M. F.	C7H9BO4	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23490 Database Data ID
M. W.	167.95496
CAS	259209-17-1
Similarity	N/A

ID: 806161

ethyl 2-formyl-1,3-thiazole-4-carboxylate			$$$$
M. F.	C7H7NO3S	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23491 Database Data ID
M. W.	185.20038
CAS	73956-17-9
Similarity	N/A

ID: 806162

tert-butyl 4-(4-bromophenyl)-4-hydroxypiperidine-1-carboxylate			$$$$
M. F.	C16H22BrNO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23492 Database Data ID
M. W.	356.25478
CAS	163209-96-9
Similarity	N/A

ID: 806163

3-amino-5-methylthiophene-2-carbonitrile			$$$$
M. F.	C6H6N2S	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23493 Database Data ID
M. W.	138.19024
CAS	83060-73-5
Similarity	N/A

ID: 806164

(2S)-1-(2-chloroacetyl)pyrrolidine-2-carbonitrile			$$$$
M. F.	C7H9ClN2O	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23498 Database Data ID
M. W.	172.61216
CAS	207557-35-5
Similarity	N/A

ID: 806165

7-bromo-3-iodo-1H-indazole			$$$$
M. F.	C7H4BrIN2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23500 Database Data ID
M. W.	322.92853
CAS	944904-26-1
Similarity	N/A

ID: 806166

4-bromopyridazine			$$$$
M. F.	C4H3BrN2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23504 Database Data ID
M. W.	158.98402
CAS	115514-66-4
Similarity	N/A

ID: 806167

4-(methylamino)-3-nitrophenol			$$$$
M. F.	C7H8N2O3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23512 Database Data ID
M. W.	168.15002
CAS	14703-88-9
Similarity	N/A

ID: 806168

tert-butyl N-(2-oxo-2-phenylethyl)carbamate			$$$$
M. F.	C13H17NO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23514 Database Data ID
M. W.	235.27898
CAS	76477-26-4
Similarity	N/A

ID: 806169

(2-{[(tert-butoxy)carbonyl]amino}-1,3-thiazol-5-yl)boronic acid			$$$$
M. F.	C8H13BN2O4S	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23516 Database Data ID
M. W.	244.07582
CAS	1025492-91-4
Similarity	N/A

ID: 806170

2-amino-5-(propan-2-yl)thiophene-3-carbonitrile			$$$$
M. F.	C8H10N2S	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23520 Database Data ID
M. W.	166.2434
CAS	612504-41-3
Similarity	N/A

ID: 806171

[3-(benzyloxy)-4-chlorophenyl]boronic acid			$$$$
M. F.	C13H12BClO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23523 Database Data ID
M. W.	262.49658
CAS	1007170-24-2
Similarity	N/A

ID: 806172

(5-acetylthiophen-3-yl)boronic acid			$$$$
M. F.	C6H7BO3S	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23525 Database Data ID
M. W.	169.99398
CAS	942190-74-1
Similarity	N/A

ID: 806173

4-methylpiperidin-4-amine			$$$$
M. F.	C6H14N2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23529 Database Data ID
M. W.	114.18876
CAS	196614-16-1
Similarity	N/A

ID: 806174

2-(aminomethyl)pyridin-3-amine			$$$$
M. F.	C6H9N3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23531 Database Data ID
M. W.	123.15576
CAS	144288-50-6
Similarity	N/A

ID: 806175

(pyrazin-2-yl)boronic acid			$$$$
M. F.	C4H5BN2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23533 Database Data ID
M. W.	123.9057
CAS	762263-64-9
Similarity	N/A

ID: 806176

(3-hydroxypyridin-2-yl)boronic acid			$$$$
M. F.	C5H6BNO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23534 Database Data ID
M. W.	138.91704
CAS	1245942-28-2
Similarity	N/A

ID: 806177

5-methyl-2-nitrobenzaldehyde			$$$$
M. F.	C8H7NO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23537 Database Data ID
M. W.	165.14608
CAS	5858-28-6
Similarity	N/A

ID: 806178

2-(2-nitrophenyl)acetaldehyde			$$$$
M. F.	C8H7NO3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23538 Database Data ID
M. W.	165.14608
CAS	1969-73-9
Similarity	N/A

ID: 806179

2-[3-(trifluoromethyl)phenyl]acetaldehyde			$$$$
M. F.	C9H7F3O	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23540 Database Data ID
M. W.	188.1464896
CAS	21172-31-6
Similarity	N/A

ID: 806180

2-[2-(trifluoromethyl)phenyl]acetaldehyde			$$$$
M. F.	C9H7F3O	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23541 Database Data ID
M. W.	188.1464896
CAS	21235-63-2
Similarity	N/A

ID: 806181

2-[4-(dimethylamino)phenyl]acetaldehyde			$$$$
M. F.	C10H13NO	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23542 Database Data ID
M. W.	163.21632
CAS	99074-89-2
Similarity	N/A

ID: 806182

tert-butyl N-methyl-N-[(3S)-pyrrolidin-3-yl]carbamate			$$$$
M. F.	C10H20N2O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23543 Database Data ID
M. W.	200.278
CAS	169750-01-0
Similarity	N/A

ID: 806183

1-(benzyloxy)-3-ethynylbenzene			$$$$
M. F.	C15H12O	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23544 Database Data ID
M. W.	208.25518
CAS	128133-59-5
Similarity	N/A

ID: 806184

2-ethynylquinoline			$$$$
M. F.	C11H7N	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23548 Database Data ID
M. W.	153.17998
CAS	40176-78-1
Similarity	N/A

ID: 806185

1H-1,2,3-triazole-1-carbaldehyde			$$$$
M. F.	C3H3N3O	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23552 Database Data ID
M. W.	97.07542
CAS	959960-46-4
Similarity	N/A

ID: 806186

3-(chloromethyl)-4H-1,2,4-triazole			$$$$
M. F.	C3H4ClN3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23553 Database Data ID
M. W.	117.53696
CAS	55928-92-2
Similarity	N/A

ID: 806187

3-methanehydrazonoyl-2-methyl-1H-indole			$$$$
M. F.	C10H11N3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23555 Database Data ID
M. W.	173.21444
CAS	1196482-65-1
Similarity	N/A

ID: 806188

ethyl 5-hydroxy-3-methyl-1,2,4-triazine-6-carboxylate			$$$$
M. F.	C7H9N3O3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23558 Database Data ID
M. W.	183.16466
CAS	36286-80-3
Similarity	N/A

ID: 806189

ethyl 5-chloro-3-methyl-1,2,4-triazine-6-carboxylate			$$$$
M. F.	C7H8ClN3O2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23559 Database Data ID
M. W.	201.61032
CAS	141872-16-4
Similarity	N/A

ID: 806190

5-hydroxy-3-methyl-1,2,4-triazine-6-carboxylic acid			$$$$
M. F.	C5H5N3O3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23560 AJA-O23561 Database Data ID
M. W.	155.1115
CAS	72324-38-0
Similarity	N/A

ID: 806191

ethyl 3-hydroxy-5-methylpyrazine-2-carboxylate			$$$$
M. F.	C8H10N2O3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23562 Database Data ID
M. W.	182.1766
CAS	141872-22-2
Similarity	N/A

ID: 806192

methyl 2,6-difluoropyridine-3-carboxylate			$$$$
M. F.	C7H5F2NO2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23563 Database Data ID
M. W.	173.1169064
CAS	117671-02-0
Similarity	N/A

ID: 806193

N-[(4-aminophenyl)methyl]guanidine hydrochloride			$$$$
M. F.	C8H13ClN4	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23569 Database Data ID
M. W.	200.66862
CAS	774227-01-9
Similarity	N/A

ID: 806194

(2S)-5-carbamimidamido-2-[(4-nitrophenyl)formamido]pentanoic acid			$$$$
M. F.	C13H17N5O5	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23570 Database Data ID
M. W.	323.30458
CAS	3908/12/1
Similarity	N/A

ID: 806195

methyl (2S)-2-amino-2-(4-fluorophenyl)acetate			$$$$
M. F.	C9H10FNO2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23571 Database Data ID
M. W.	183.1796032
CAS	170902-74-6
Similarity	N/A

ID: 806196

2,5-diamino-3-chlorobenzonitrile			$$$$
M. F.	C7H6ClN3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23572 Database Data ID
M. W.	167.59564
CAS	82997-64-6
Similarity	N/A

ID: 806197

N-(4-chloro-3-cyanophenyl)acetamide			$$$$
M. F.	C9H7ClN2O	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23573 Database Data ID
M. W.	194.61768
CAS	53312-85-9
Similarity	N/A

ID: 806198

(5-bromopyridin-2-yl)boronic acid			$$$$
M. F.	C5H5BBrNO2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23575 Database Data ID
M. W.	201.8137
CAS	652148-97-5
Similarity	N/A

ID: 806199

(6-fluoropyridin-2-yl)boronic acid			$$$$
M. F.	C5H5BFNO2	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23578 Database Data ID
M. W.	140.9081032
CAS	916176-61-9
Similarity	N/A

ID: 806200

3,5-dibromo-6-methylpyrazin-2-amine			$$$$
M. F.	C5H5Br2N3	Custom Synthesis Information This compound is available through custom synthesis, please feel free to contact us for a quote. Email: info@chembase.cn Suppliers Catalog Number A&J Pharmtech AJA-O23582 Database Data ID
M. W.	266.9213
CAS	74290-66-7
Similarity	N/A

• ID:806151

  

  tert-butyl (3S)-3-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxylate

• ID:806152

  

  tert-butyl (3R)-3-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxylate

• ID:806153

  

  tert-butyl 2-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxylate

• ID:806154

  

  tert-butyl (2S)-2-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxylate

• ID:806155

  

  tert-butyl (2R)-2-{[3,5-bis(trifluoromethyl)phenyl]methyl}piperazine-1-carboxylate

• ID:806156

  

  4-amino-3-[(propan-2-yl)amino]benzoic acid

• ID:806157

  

  2-chloro-5-(1,3-dioxolan-2-yl)pyridine

• ID:806158

  

  (2-hydroxy-3-methylphenyl)boronic acid

• ID:806159

  

  (3-chloro-2-hydroxyphenyl)boronic acid

• ID:806160

  

  (2-hydroxy-3-methoxyphenyl)boronic acid

• ID:806161

  

  ethyl 2-formyl-1,3-thiazole-4-carboxylate

• ID:806162

  

  tert-butyl 4-(4-bromophenyl)-4-hydroxypiperidine-1-carboxylate

• ID:806163

  

  3-amino-5-methylthiophene-2-carbonitrile

• ID:806164

  

  (2S)-1-(2-chloroacetyl)pyrrolidine-2-carbonitrile

• ID:806165

  

  7-bromo-3-iodo-1H-indazole

• ID:806166

  

  4-bromopyridazine

• ID:806167

  

  4-(methylamino)-3-nitrophenol

• ID:806168

  

  tert-butyl N-(2-oxo-2-phenylethyl)carbamate

• ID:806169

  

  (2-{[(tert-butoxy)carbonyl]amino}-1,3-thiazol-5-yl)boronic acid

• ID:806170

  

  2-amino-5-(propan-2-yl)thiophene-3-carbonitrile

• ID:806171

  

  [3-(benzyloxy)-4-chlorophenyl]boronic acid

• ID:806172

  

  (5-acetylthiophen-3-yl)boronic acid

• ID:806173

  

  4-methylpiperidin-4-amine

• ID:806174

  

  2-(aminomethyl)pyridin-3-amine

• ID:806175

  

  (pyrazin-2-yl)boronic acid

• ID:806176

  

  (3-hydroxypyridin-2-yl)boronic acid

• ID:806177

  

  5-methyl-2-nitrobenzaldehyde

• ID:806178

  

  2-(2-nitrophenyl)acetaldehyde

• ID:806179

  

  2-[3-(trifluoromethyl)phenyl]acetaldehyde

• ID:806180

  

  2-[2-(trifluoromethyl)phenyl]acetaldehyde

• ID:806181

  

  2-[4-(dimethylamino)phenyl]acetaldehyde

• ID:806182

  

  tert-butyl N-methyl-N-[(3S)-pyrrolidin-3-yl]carbamate

• ID:806183

  

  1-(benzyloxy)-3-ethynylbenzene

• ID:806184

  

  2-ethynylquinoline

• ID:806185

  

  1H-1,2,3-triazole-1-carbaldehyde

• ID:806186

  

  3-(chloromethyl)-4H-1,2,4-triazole

• ID:806187

  

  3-methanehydrazonoyl-2-methyl-1H-indole

• ID:806188

  

  ethyl 5-hydroxy-3-methyl-1,2,4-triazine-6-carboxylate

• ID:806189

  

  ethyl 5-chloro-3-methyl-1,2,4-triazine-6-carboxylate

• ID:806190

  

  5-hydroxy-3-methyl-1,2,4-triazine-6-carboxylic acid

• ID:806191

  

  ethyl 3-hydroxy-5-methylpyrazine-2-carboxylate

• ID:806192

  

  methyl 2,6-difluoropyridine-3-carboxylate

• ID:806193

  

  N-[(4-aminophenyl)methyl]guanidine hydrochloride

• ID:806194

  

  (2S)-5-carbamimidamido-2-[(4-nitrophenyl)formamido]pentanoic acid

• ID:806195

  

  methyl (2S)-2-amino-2-(4-fluorophenyl)acetate

• ID:806196

  

  2,5-diamino-3-chlorobenzonitrile

• ID:806197

  

  N-(4-chloro-3-cyanophenyl)acetamide

• ID:806198

  

  (5-bromopyridin-2-yl)boronic acid

• ID:806199

  

  (6-fluoropyridin-2-yl)boronic acid

• ID:806200

  

  3,5-dibromo-6-methylpyrazin-2-amine