Chembase list of 866358 unique molecular structures

(3E)-4-phenylbut-3-en-2-amine hydrochloride

$$$$ Data

M. F.

C10H14ClN

Suppliers	Catalog Number
Matrix Scientific	077222

Database	Data ID
PubChem	71299917

M. W.

183.67786

CAS

Similarity

N/A

ID: 71602

N'-formylformohydrazide

$$$$ Data

M. F.

C2H4N2O2

Suppliers	Catalog Number
Sigma Aldrich	D103004
MP Biomedicals	05201677
Matrix Scientific	077223

Database	Data ID
PubChem	12342

M. W.

88.06536

CAS

628-36-4

Similarity

N/A

ID: 71603

N'-benzoyl-N,N'-dimethylbenzohydrazide

$$$$ Data

M. F.

C16H16N2O2

Suppliers	Catalog Number
Matrix Scientific	077224

Database	Data ID
PubChem	71044

M. W.

268.31044

CAS

1226-43-3

Similarity

N/A

ID: 71604

1-(4-methylpiperazin-1-yl)propan-2-amine dihydrochloride

$$$$ Data

M. F.

C8H21Cl2N3

Suppliers	Catalog Number
Matrix Scientific	077225

Database	Data ID
PubChem	71299241

M. W.

230.17844

CAS

Similarity

N/A

ID: 71605

4,5-dimethyl-3,6-dihydro-2H-1,2-oxazine hydrochloride

$$$$ Data

M. F.

C6H12ClNO

Suppliers	Catalog Number
Matrix Scientific	077226

Database	Data ID
PubChem	71299900

M. W.

149.61858

CAS

Similarity

N/A

ID: 71606

1,2-dimethylhydrazine

$$$$ Data

M. F.

C2H8N2

Suppliers	Catalog Number
Matrix Scientific	077227

Database	Data ID
Wikipedia	1,2-Dimethylhydrazine
PubChem	1322

M. W.

60.09832

CAS

540-73-8

Similarity

N/A

ID: 71607

3,6-dihydro-2H-1,2-oxazine hydrochloride

$$$$ Data

M. F.

C4H8ClNO

Suppliers	Catalog Number
Matrix Scientific	077228

Database	Data ID
PubChem	12580557

M. W.

121.56542

CAS

Similarity

N/A

ID: 71608

ethyl 3-aminobutanoate

$$$$ Data More

M. F.

C6H13NO2

Suppliers	Catalog Number
Sigma Aldrich	E10556
Matrix Scientific	077229
Enamine	EN300-103921

Database	Data ID
PubChem	98103

M. W.

131.17292

CAS

5303-65-1

Similarity

N/A

ID: 71609

N-(5-bromo-4-methyl-1,3-thiazol-2-yl)acetamide

$$$$ Data

M. F.

C6H7BrN2OS

Suppliers	Catalog Number
Matrix Scientific	077230

Database	Data ID
PubChem	822437

M. W.

235.10158

CAS

Similarity

N/A

ID: 71610

2-(pyrrolidin-2-yl)-1,3-benzoxazole

$$$$ Data

M. F.

C11H12N2O

Suppliers	Catalog Number
Matrix Scientific	077231

Database	Data ID
PubChem	4961929

M. W.

188.22578

CAS

Similarity

N/A

ID: 71611

2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-N'-(2-methylpropanoyl)acetohydrazide

$$$$ Data

M. F.

C14H15N3O4

Suppliers	Catalog Number
Matrix Scientific	077232

Database	Data ID
PubChem	34078876

M. W.

289.2866

CAS

Similarity

N/A

ID: 71612

propan-2-yl 1-(propan-2-yl)pyrrolidine-2-carboxylate

$$$$ Data

M. F.

C11H21NO2

Suppliers	Catalog Number
Matrix Scientific	077233

Database	Data ID
PubChem	574504

M. W.

199.28994

CAS

Similarity

N/A

ID: 71613

3-(bromomethyl)-1-(propan-2-yl)pyrrolidine hydrobromide

$$$$ Data

M. F.

C8H17Br2N

Suppliers	Catalog Number
Matrix Scientific	077234

Database	Data ID
PubChem	71299918

M. W.

287.03528

CAS

Similarity

N/A

ID: 71614

3-(bromomethyl)-1-methylpyrrolidine hydrobromide

$$$$ Data

M. F.

C6H13Br2N

Suppliers	Catalog Number
Matrix Scientific	077235
Enamine	EN300-113012

Database	Data ID
PubChem	71299895

M. W.

258.98212

CAS

Similarity

N/A

ID: 71615

2-(bromomethyl)-1-methylpiperidine hydrobromide

$$$$ Data

M. F.

C7H15Br2N

Suppliers	Catalog Number
Matrix Scientific	077236

Database	Data ID
PubChem	53444597

M. W.

273.0087

CAS

Similarity

N/A

ID: 71616

2-(chloromethyl)-5-methoxy-1,3,4-thiadiazole

$$$$ Data

M. F.

C4H5ClN2OS

Suppliers	Catalog Number
ChemBridge	4044072
Matrix Scientific	077237
Enamine	EN300-53278

Database	Data ID
PubChem	12816259

M. W.

164.6133

CAS

3914-44-1

Similarity

N/A

ID: 71617

5-ethyl-1,3,4-thiadiazol-2-ol

$$$$ Data

M. F.

C4H6N2OS

Suppliers	Catalog Number
ChemBridge	4044155
Matrix Scientific	077238

Database	Data ID
PubChem	56737772

M. W.

130.16824

CAS

1330756-14-3

Similarity

N/A

ID: 71618

N-(carbamothioylamino)benzamide

$$$$ Data

M. F.

C8H9N3OS

Suppliers	Catalog Number
Matrix Scientific	077239

Database	Data ID
PubChem	781748

M. W.

195.24156

CAS

Similarity

N/A

ID: 71619

3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)propanenitrile

$$$$ Data

M. F.

C11H8N2O2

Suppliers	Catalog Number
Matrix Scientific	077240
InterBioScreen	BB_SC-8762
Enamine	EN300-55133

Database	Data ID
PubChem	352169

M. W.

200.19342

CAS

Similarity

N/A

ID: 71620

5-tert-butyl-4H-1,2,4-triazole-3-thiol

$$$$ Data

M. F.

C6H11N3S

Suppliers	Catalog Number
Matrix Scientific	077241
Enamine	EN300-26346

Database	Data ID
PubChem	2743067

M. W.

157.23664

CAS

38449-51-3

Similarity

N/A

ID: 71621

3-(bromomethyl)-1-ethylpyrrolidine hydrobromide

$$$$ Data

M. F.

C7H15Br2N

Suppliers	Catalog Number
Matrix Scientific	077242

Database	Data ID
PubChem	71299904

M. W.

273.0087

CAS

Similarity

N/A

ID: 71622

4-(chloromethyl)-1-methylpiperidine hydrochloride

$$$$ Data

M. F.

C7H15Cl2N

Suppliers	Catalog Number
Matrix Scientific	077243

Database	Data ID
PubChem	21436138

M. W.

184.1067

CAS

1182284-45-2

Similarity

N/A

ID: 71623

3-phenyl-1H-1,2,4-triazole

$$$$ Data

M. F.

C8H7N3

Suppliers	Catalog Number
ChemBridge	4035858
Matrix Scientific	077244
Enamine	EN300-79821

Database	Data ID
PubChem	18786

M. W.

145.16128

CAS

3357-42-4

Similarity

N/A

ID: 71624

5-(4H-1,2,4-triazol-4-yl)-1H-1,2,4-triazole

$$$$ Data

M. F.

C4H4N6

Suppliers	Catalog Number
Matrix Scientific	077245

Database	Data ID
PubChem	1240137

M. W.

136.11476

CAS

Similarity

N/A

ID: 71625

4-methyl-1H-imidazole-5-carbaldehyde

$$$$ Data More

M. F.

C5H6N2O

Suppliers	Catalog Number
Sigma Aldrich	392154
Matrix Scientific	077246
Maybridge	SB01366

Database	Data ID
PubChem	2795887

M. W.

110.11394

CAS

68282-53-1

Similarity

N/A

ID: 71626

5-(phenoxymethyl)-1,3,4-oxadiazol-2-amine

$$$$ Data

M. F.

C9H9N3O2

Suppliers	Catalog Number
Matrix Scientific	077247
Life Chemicals	F2145-0149
InterBioScreen	BB_SC-10187

Database	Data ID
PubChem	30673

M. W.

191.18666

CAS

21520-88-7

Similarity

N/A

ID: 71627

2-(2-methyl-1H-imidazol-1-yl)ethan-1-ol hydrobromide

$$$$ Data

M. F.

C6H11BrN2O

Suppliers	Catalog Number
Matrix Scientific	077248

Database	Data ID
PubChem	71299242

M. W.

207.06834

CAS

1615-15-2

Similarity

N/A

ID: 71628

2-chloro-5-ethyl-1,3,4-thiadiazole

$$$$ Data

M. F.

C4H5ClN2S

Suppliers	Catalog Number
ChemBridge	4044569
Matrix Scientific	077249

Database	Data ID
PubChem	253146

M. W.

148.6139

CAS

71859-81-9

Similarity

N/A

ID: 71629

methyl 4-methyl-1H-imidazole-5-carboxylate

$$$$ Data

M. F.

C6H8N2O2

Suppliers	Catalog Number
ChemBridge	4044514
Matrix Scientific	077250

Database	Data ID
PubChem	587740

M. W.

140.13992

CAS

78892-68-9

Similarity

N/A

ID: 71630

2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)acetonitrile

$$$$ Data

M. F.

C10H6N2O2

Suppliers	Catalog Number
Matrix Scientific	077251
InterBioScreen	BB_SC-9957
Enamine	EN300-30880

Database	Data ID
PubChem	345881

M. W.

186.16684

CAS

Similarity

N/A

ID: 71631

2-chloro-5-methyl-1,3,4-thiadiazole

$$$$ Data

M. F.

C3H3ClN2S

Suppliers	Catalog Number
ChemBridge	4044421
Matrix Scientific	077252
Enamine	EN300-81988

Database	Data ID
PubChem	12956469

M. W.

134.58732

CAS

53645-94-6

Similarity

N/A

ID: 71632

2-(1H-imidazol-2-ylmethyl)-2,3-dihydro-1H-isoindole-1,3-dione

$$$$ Data

M. F.

C12H9N3O2

Suppliers	Catalog Number
Matrix Scientific	077253

Database	Data ID
PubChem	21790184

M. W.

227.21876

CAS

Similarity

N/A

ID: 71633

methyl 2-methylpropanecarboximidate hydrochloride

$$$$ Data

M. F.

C5H12ClNO

Suppliers	Catalog Number
Matrix Scientific	077254

Database	Data ID
PubChem	371709

M. W.

137.60788

CAS

39739-60-1

Similarity

N/A

ID: 71634

(Z)-carbamoylmethenecarbonimidoyl cyanide

$$$$ Data

M. F.

C3H3N3O2

Suppliers	Catalog Number
Matrix Scientific	077255

Database	Data ID
PubChem	6399032

M. W.

113.07482

CAS

Similarity

N/A

ID: 71635

(5-methyl-1,3,4-thiadiazol-2-yl)methanamine hydrochloride

$$$$ Data

M. F.

C4H8ClN3S

Suppliers	Catalog Number
Matrix Scientific	077256

Database	Data ID
PubChem	11615231

M. W.

165.64442

CAS

784131-72-2

Similarity

N/A

ID: 71636

(3-methyl-1,2,4-oxadiazol-5-yl)methanol

$$$$ Data More

M. F.

C4H6N2O2

Suppliers	Catalog Number
ChemBridge	4033684
Matrix Scientific	077257
Enamine	EN300-64616

Database	Data ID
PubChem	14072448

M. W.

114.10264

CAS

112960-56-2

Similarity

N/A

ID: 71637

(3-methyl-1,2,4-oxadiazol-5-yl)methyl acetate

$$$$ Data

M. F.

C6H8N2O3

Suppliers	Catalog Number
Matrix Scientific	077258
A&J Pharmtech	AJA-O37955

Database	Data ID
PubChem	53995720

M. W.

156.13932

CAS

187970-11-2

Similarity

N/A

ID: 71638

[3-(trifluoromethyl)-1,2,4-oxadiazol-5-yl]methanol

$$$$ Data

M. F.

C4H3F3N2O2

Suppliers	Catalog Number
Matrix Scientific	077259

Database	Data ID
PubChem	56763752

M. W.

168.0740296

CAS

Similarity

N/A

ID: 71639

3-(trifluoromethyl)-1,2,4-oxadiazol-5-ol

$$$$ Data

M. F.

C3HF3N2O2

Suppliers	Catalog Number
Matrix Scientific	077260

Database	Data ID
PubChem	56763753

M. W.

154.0474496

CAS

Similarity

N/A

ID: 71640

[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methanamine hydrochloride

$$$$ Data

M. F.

C10H12ClN3O

Suppliers	Catalog Number
Matrix Scientific	077261
InterBioScreen	BB_SC-7307

Database	Data ID
PubChem	51051884

M. W.

225.67478

CAS

890324-74-0

Similarity

N/A

ID: 71641

5-chloro-3-phenyl-1,2,4-oxadiazole

$$$$ Data More

M. F.

C8H5ClN2O

Suppliers	Catalog Number
ChemBridge	4035345
Matrix Scientific	077262
Enamine	EN300-31649

Database	Data ID
PubChem	12728443

M. W.

180.5911

CAS

827-44-1

Similarity

N/A

ID: 71642

3-phenyl-1,2,4-oxadiazol-5-ol

$$$$ Data

M. F.

C8H6N2O2

Suppliers	Catalog Number
Matrix Scientific	077263
Bide Pharmatech	BD209087

Database	Data ID
PubChem	73819

M. W.

162.14544

CAS

1456-22-0

Similarity

N/A

ID: 71643

N-methyl-3-(trifluoromethyl)-6H-1,2,4-oxadiazin-5-amine

$$$$ Data

M. F.

C5H6F3N3O

Suppliers	Catalog Number
Matrix Scientific	077264

Database	Data ID
PubChem	56763754

M. W.

181.1158496

CAS

Similarity

N/A

ID: 71644

N,6-dimethyl-3-(trifluoromethyl)-6H-1,2,4-oxadiazin-5-amine

$$$$ Data

M. F.

C6H8F3N3O

Suppliers	Catalog Number
Matrix Scientific	077265

Database	Data ID
PubChem	56763755

M. W.

195.1424296

CAS

Similarity

N/A

ID: 71645

4-ethyl-1H-pyrazole

$$$$ Data

M. F.

C5H8N2

Suppliers	Catalog Number
ChemBridge	4044718
Matrix Scientific	077266

Database	Data ID
PubChem	12933274

M. W.

96.13042

CAS

17072-38-7

Similarity

N/A

ID: 71646

5-(trifluoromethyl)-2H-1,2,3,4-tetrazole

$$$$ Data

M. F.

C2HF3N4

Suppliers	Catalog Number
ChemBridge	4044638
Matrix Scientific	077267

Database	Data ID
PubChem	421708

M. W.

138.0513496

CAS

1702-15-4

Similarity

N/A

ID: 71647

5-ethylpyrimidin-2-ol hydrochloride

$$$$ Data

M. F.

C6H9ClN2O

Suppliers	Catalog Number
Matrix Scientific	077268

Database	Data ID
PubChem	71299896

M. W.

160.60146

CAS

Similarity

N/A

ID: 71648

5-methylpyrimidin-2-ol hydrochloride

$$$$ Data

M. F.

C5H7ClN2O

Suppliers	Catalog Number
Matrix Scientific	077269

Database	Data ID
PubChem	71299243

M. W.

146.57488

CAS

41398-85-0

Similarity

N/A

ID: 71649

4-propyl-1H-pyrazole

$$$$ Data

M. F.

C6H10N2

Suppliers	Catalog Number
ChemBridge	4044489
Matrix Scientific	077270

Database	Data ID
PubChem	12943708

M. W.

110.157

CAS

Similarity

N/A

ID: 71650

2-amino-5-methyl-1,3-thiazole-4-carboxylic acid

$$$$ Data

M. F.

C5H6N2O2S

Suppliers	Catalog Number
Matrix Scientific	077271
Bide Pharmatech	BD100420
A&J Pharmtech	AJA-O3510

Database	Data ID
PubChem	1512698

M. W.

158.17834

CAS

688064-14-4

Similarity

N/A

Part I: Carbon
- I.1: Carbon-Carbon Bonds
- I.1.1 Alkanes
- Primary carbon
- Secondary carbon
- Tertiary carbon
- Quaternary carbon
- I.1.2 C-C double and Triple Bonds
- Alkene
- Alkyne
- Allene
- I.2: One Carbon-Hetero Bond
- I.2.1 Alkyl Halogenides
- Alkylchloride
- Alkylfluoride
- Alkylbromide
- Alkyliodide
- I.2.2 Alcohols and Ethers
- Alcohol
- Primary alcohol
- Secondary alcohol
- Tertiary alcohol
- Dialkylether
- Dialkylthioether
- Alkylarylether
- Diarylether
- Alkylarylthioether
- Diarylthioether
- Oxonium
- I.2.3 Amines
- Amine
- Primary aliphatic amine
- Secondary aliphatic amine
- Tertiary aliphatic amine
- Quaternary aliphatic ammonium
- Primary aromatic amine
- Secondary aromatic amine
- Tertiary aromatic amine
- Quaternary aromatic ammonium
- Secondary mixed amine
- Tertiary mixed amine
- Quaternary mixed ammonium
- Ammonium
- I.2.4 Others
- Alkylthiol
- Dialkylthioether
- Alkylarylthioether
- Disulfide
- 1,2-Aminoalcohol
- 1,2-Diol
- 1,1-Diol
- Hydroperoxide
- Peroxo
- Organolithium compounds
- Organomagnesium compounds
- Organometallic compounds
- I.3: Two Carbon-Hetero Bonds (Carbonyl and Derivatives)
- I.3.1 Double Bond to Hetero
- Aldehyde
- Ketone
- Thioaldehyde
- Thioketone
- Imine
- Immonium
- Oxime
- Oximether
- I.3.2. Two Single Bonds to Hetero
- Acetal
- Hemiacetal
- Aminal
- Hemiaminal
- Thioacetal
- Thiohemiacetal
- Halogen acetal like
- Acetal like
- Halogenmethylen ester and similar
- NOS methylen ester and similar
- Hetero methylen ester and similar
- Cyanhydrine
- I.3.3 Single Bond to Hetero, C=C Double Bond (Enols and Similar)
- Chloroalkene
- Fluoroalkene
- Bromoalkene
- Iodoalkene
- Enol
- Endiol
- Enolether
- Enolester
- Enamine
- Thioenol
- Thioenolether
- I.4: Three Carbon-Hetero Bonds (Carboxyl and Derivatives)
- Acylchloride
- Acylfluoride
- Acylbromide
- Acyliodide
- Acylhalide
- Carboxylic acid
- Carboxylic ester
- Lactone
- Carboxylic anhydride
- Carboxylic acid derivative
- Carbothioic acid
- Carbothioic S ester
- Carbothioic S lactone
- Carbothioic O ester
- Carbothioic O lactone
- Carbothioic halide
- Carbodithioic acid
- Carbodithioic ester
- Carbodithiolactone
- Amide
- Primary amide
- Secondary amide
- Tertiary amide
- Lactam
- Alkyl imide
- N hetero imide
- Imide acidic
- Thioamide
- Thiolactam
- Oximester
- Amidine
- Hydroxamic acid
- Hydroxamic acid ester
- Imidoacid
- Imidoacid cyclic
- Imidoester
- Imidolactone
- Imidothioacid
- Imidothioacid cyclic
- Imidothioester
- Imidothiolactone
- Amidine
- Imidolactam
- Imidoylhalide
- Imidoylhalide cyclic
- Amidrazone
- Alpha aminoacid
- Alpha hydroxyacid
- Peptide middle
- Peptide C term
- Peptide N term
- Carboxylic orthoester
- Ketene
- Ketenacetal
- Nitrile
- Isonitrile
- Vinylogous carbonyl or carboxyl derivative
- Vinylogous acid
- Vinylogous ester
- Vinylogous amide
- Vinylogous halide
- I.5: Four Carbon-Hetero Bonds (Carbonic Acid and Derivatives)
- Carbonic acid dieester
- Carbonic acid esterhalide
- Carbonic acid monoester
- Carbonic acid derivatives
- Thiocarbonic acid dieester
- Thiocarbonic acid esterhalide
- Thiocarbonic acid monoester
- Urea
- Thiourea
- Isourea
- Isothiourea
- Guanidine
- Carbaminic acid
- Urethan(Carbamate ester)
- Biuret
- Semicarbazide
- Carbazide
- Semicarbazone
- Carbazone
- Thiosemicarbazide
- Thiocarbazide
- Thiosemicarbazone
- Thiocarbazone
- Isocyanate
- Cyanate
- Isothiocyanate
- Thiocyanate
- Carbodiimide
- Orthocarbonic derivatives
- I.6 Aromatics
- Phenol
- 1,2-Diphenol
- Arylchloride
- Arylfluoride
- Arylbromide
- Aryliodide
- Arylthiol
- Iminoarene
- Oxoarene
- Thioarene
- Hetero N basic H
- Hetero N basic no H
- Hetero N nonbasic
- Hetero O
- Hetero S
- Heteroaromatic
Part II: N, S, P, Si, B
- II.1 Nitrogen
- Nitrite
- Thionitrite
- Nitrate
- Nitro
- Nitroso
- Azide
- Acylazide
- Diazo
- Diazonium
- Nitrosamine
- Nitrosamide
- N-Oxide
- Hydrazine
- Hydrazone
- Hydroxylamine
- II.2 Sulfur
- Sulfon
- Sulfoxide
- Sulfonium
- Sulfuric acid
- Sulfuric monoester
- Sulfuric diester
- Sulfuric monoamide
- Sulfuric diamide
- Sulfuric esteramide
- Sulfuric derivative
- Sulfonic acid
- Sulfonamide
- Sulfonic ester
- Sulfonic halide
- Sulfonic derivative
- Sulfinic acid
- Sulfinic amide
- Sulfinic ester
- Sulfinic halide
- Sulfinic derivative
- Sulfenic acid
- Sulfenic amide
- Sulfenic ester
- Sulfenic halide
- Sulfenic derivative
- II.3 Phosphorous
- Phosphine
- Phosphine oxide
- Phosphonium
- Phosphorylen
- Phosphonic acid
- Phosphonic monoester
- Phosphonic diester
- Phosphonic monoamide
- Phosphonic diamide
- Phosphonic esteramide
- Phosphonic acid derivative
- Phosphoric acid
- Phosphoric monoester
- Phosphoric diester
- Phosphoric triester
- Phosphoric monoamide
- Phosphoric diamide
- Phosphoric triamide
- Phosphoric monoestermonoamide
- Phosphoric diestermonoamide
- Phosphoric monoesterdiamide
- Phosphoric acid derivative
- Phosphinic acid
- Phosphinic ester
- Phosphinic amide
- Phosphinic acid derivative
- Phosphonous acid
- Phosphonous monoester
- Phosphonous diester
- Phosphonous monoamide
- Phosphonous diamide
- Phosphonous esteramide
- Phosphonous derivatives
- Phosphinous acid
- Phosphinous ester
- Phosphinous amide
- Phosphinous derivatives
- II.4 Silicon
- Quart silane
- Non-quart silane
- Silylmonohalide
- Het trialkylsilane
- Dihet dialkylsilane
- Trihet alkylsilane
- Silicic acid derivative
- II.5 Boron
- Trialkylborane
- Boric acid derivatives
- Boronic acid derivative
- Borohydride
- Quaternary boron
Part III: Some Special Patterns
- III.1 Chains
- III.2 Rings
- Aromatic
- Heterocyclic
- Epoxide
- NH aziridine
- Spiro
- Annelated rings
- Bridged rings
- III.3 Sugars and Nucleosides/Nucleotides, Steroids
- Sugar pattern 1
- Sugar pattern 2
- Sugar pattern combi
- Sugar pattern 2 reducing
- Sugar pattern 2 alpha
- Sugar pattern 2 beta
- III.4 Everything else...
- Conjugated double bond
- Conjugated tripple bond
- Cis double bond
- Trans double bond
- Mixed anhydrides
- Halogen on hetero
- Halogen multi subst
- Trifluoromethyl
- C ONS bond
- Charged
- Anion
- Kation
- Salt
- 1,3-Tautomerizable
- 1,5-Tautomerizable
- Rotatable bond
- Michael acceptor
- Dicarbodiazene
- CH-acidic
- CH-acidic strong
- Chiral center specified