Chembase list of 866358 unique molecular structures

$$$$ Data

M. F.

C8H6Br2O3

Suppliers	Catalog Number
Alfa Aesar	A13865
Matrix Scientific	024047
Apollo Scientific	OR0124

Database	Data ID
PubChem	82382

M. W.

309.93944

CAS

10129-78-9

Similarity

N/A

ID: 21702

2-(2-methoxyphenoxy)acetic acid

$$$$ Data More

M. F.

C9H10O4

Suppliers	Catalog Number
Sigma Aldrich	455733
Alfa Aesar	B20672
Matrix Scientific	024048

Database	Data ID
PubChem	15882

M. W.

182.1733

CAS

1878-85-9

Similarity

N/A

ID: 21703

2-(4-bromophenoxy)acetic acid

$$$$ Data

M. F.

C8H7BrO3

Suppliers	Catalog Number
Sigma Aldrich	549827
Alfa Aesar	H60888
Matrix Scientific	024049

Database	Data ID
PubChem	74657

M. W.

231.04338

CAS

1878-91-7

Similarity

N/A

ID: 21704

2-(2,4-dibromo-6-methylphenoxy)acetic acid

$$$$ Data

M. F.

C9H8Br2O3

Suppliers	Catalog Number
Matrix Scientific	024050

Database	Data ID
PubChem	232533

M. W.

323.96602

CAS

Similarity

N/A

ID: 21705

3-bromo-4-methylbenzoic acid

$$$$ Data More

M. F.

C8H7BrO2

Suppliers	Catalog Number
Sigma Aldrich	264660
Alfa Aesar	A11496
Matrix Scientific	024051

Database	Data ID
PubChem	82130

M. W.

215.04398

CAS

7697-26-9

Similarity

N/A

ID: 21706

2-bromo-4-chlorophenol

$$$$ Data More

M. F.

C6H4BrClO

Suppliers	Catalog Number
Sigma Aldrich	B62005
MP Biomedicals	05201371
Alfa Aesar	A16218

Database	Data ID
PubChem	69670

M. W.

207.45236

CAS

695-96-5

Similarity

N/A

ID: 21707

2-[5-methyl-2-(propan-2-yl)phenoxy]acetic acid

$$$$ Data

M. F.

C12H16O3

Suppliers	Catalog Number
ChemBridge	3013824
Matrix Scientific	024053
Enamine	EN300-00016

Database	Data ID
PubChem	220116

M. W.

208.25364

CAS

5333-40-4

Similarity

N/A

ID: 21708

2-(4-bromo-3-methylphenoxy)acetic acid

$$$$ Data

M. F.

C9H9BrO3

Suppliers	Catalog Number
Matrix Scientific	024054

Database	Data ID
PubChem	687013

M. W.

245.06996

CAS

Similarity

N/A

ID: 21709

2-(2,5-dimethylphenoxy)acetic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
Alfa Aesar	L01176
Matrix Scientific	024055

Database	Data ID
PubChem	81817

M. W.

180.20048

CAS

7356-41-4

Similarity

N/A

ID: 21710

2-(4-bromo-2-methylphenoxy)acetic acid

$$$$ Data

M. F.

C9H9BrO3

Suppliers	Catalog Number
Matrix Scientific	024056

Database	Data ID
PubChem	248359

M. W.

245.06996

CAS

Similarity

N/A

ID: 21711

2-(4-ethylphenoxy)acetic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
Alfa Aesar	L01102
Matrix Scientific	024058

Database	Data ID
PubChem	90499

M. W.

180.20048

CAS

24431-27-4

Similarity

N/A

ID: 21712

3-iodo-4-methylbenzoic acid

$$$$ Data More

M. F.

C8H7IO2

Suppliers	Catalog Number
Sigma Aldrich	278858
Alfa Aesar	A14197
Matrix Scientific	024059

Database	Data ID
PubChem	621640

M. W.

262.04445

CAS

82998-57-0

Similarity

N/A

ID: 21713

2-(2-bromo-4-ethylphenoxy)acetic acid

$$$$ Data

M. F.

C10H11BrO3

Suppliers	Catalog Number
Matrix Scientific	024060

Database	Data ID
PubChem	693155

M. W.

259.09654

CAS

Similarity

N/A

ID: 21714

(2E)-3-(4-methylphenyl)prop-2-enoic acid

$$$$ Data More

M. F.

C10H10O2

Suppliers	Catalog Number
Sigma Aldrich	M35800
ChemBridge	3005326
Alfa Aesar	A13337

Database	Data ID
PubChem	731767

M. W.

162.1852

CAS

940-61-4

Similarity

N/A

ID: 21715

2-(4-bromo-2-chlorophenoxy)acetic acid

$$$$ Data

M. F.

C8H6BrClO3

Suppliers	Catalog Number
ChemBridge	3013794
Matrix Scientific	024062
Enamine	EN300-11946

Database	Data ID
PubChem	693157

M. W.

265.48844

CAS

77228-67-2

Similarity

N/A

ID: 21716

5-{2-[2-(cyclohexyloxy)-2-oxoethyl]-3-oxopiperazin-1-yl}-5-oxopentanoic acid

$$$$ Data

M. F.

C17H26N2O6

Suppliers	Catalog Number
Matrix Scientific	024063

Database	Data ID
PubChem	3163981

M. W.

354.39814

CAS

Similarity

N/A

ID: 21717

2-(4-bromo-2,6-dimethylphenoxy)acetic acid

$$$$ Data

M. F.

C10H11BrO3

Suppliers	Catalog Number
Matrix Scientific	024064

Database	Data ID
PubChem	724836

M. W.

259.09654

CAS

Similarity

N/A

ID: 21718

2-(4-methylphenoxy)propanoic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
Matrix Scientific	024065
Apollo Scientific	OR12739
Enamine	EN300-05922

Database	Data ID
PubChem	3643626

M. W.

180.20048

CAS

22504-83-2

Similarity

N/A

ID: 21719

2-(3,4-dimethylphenoxy)acetic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
Alfa Aesar	A15355
Matrix Scientific	024066
Apollo Scientific	OR1681

Database	Data ID
PubChem	83355

M. W.

180.20048

CAS

13335-73-4

Similarity

N/A

ID: 21720

2-(3-methylphenoxy)propanoic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
ChemBridge	3013839
Matrix Scientific	024067
Enamine	EN300-05963

Database	Data ID
PubChem	212845

M. W.

180.20048

CAS

25140-95-8

Similarity

N/A

ID: 21721

2-(2-methylphenoxy)propanoic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
ChemBridge	3013838
Matrix Scientific	024068

Database	Data ID
PubChem	165592

M. W.

180.20048

CAS

7345-21-3

Similarity

N/A

ID: 21722

2-(2-methylphenoxy)butanoic acid

$$$$ Data

M. F.

C11H14O3

Suppliers	Catalog Number
Matrix Scientific	024069
Enamine	EN300-100861

Database	Data ID
PubChem	4281982

M. W.

194.22706

CAS

Similarity

N/A

ID: 21723

4-oxo-4-(3-phenylpropoxy)butanoic acid

$$$$ Data

M. F.

C13H16O4

Suppliers	Catalog Number
Matrix Scientific	024070

Database	Data ID
PubChem	2062675

M. W.

236.26374

CAS

Similarity

N/A

ID: 21724

2-phenoxypropanoic acid

$$$$ Data More

M. F.

C9H10O3

Suppliers	Catalog Number
Sigma Aldrich	197149 09325
ChemBridge	3001886
MP Biomedicals	05209417

Database	Data ID
PubChem	13658

M. W.

166.1739

CAS

940-31-8

Similarity

N/A

ID: 21725

2-(4-methoxyphenoxy)propanoic acid

$$$$ Data More

M. F.

C10H12O4

Suppliers	Catalog Number
Sigma Aldrich	M6546
Matrix Scientific	024072
Apollo Scientific	OR12737

Database	Data ID
PubChem	151199

M. W.

196.19988

CAS

13794-15-5

Similarity

N/A

ID: 21726

2-(4-chlorophenoxy)propanoic acid

$$$$ Data More

M. F.

C9H9ClO3

Suppliers	Catalog Number
Sigma Aldrich	197130
MP Biomedicals	05203247
Matrix Scientific	024073

Database	Data ID
PubChem	18703

M. W.

200.61896

CAS

3307-39-9

Similarity

N/A

ID: 21727

5-{2-[2-(benzyloxy)-2-oxoethyl]-3-oxopiperazin-1-yl}-5-oxopentanoic acid

$$$$ Data

M. F.

C18H22N2O6

Suppliers	Catalog Number
Matrix Scientific	024074

Database	Data ID
PubChem	4949665

M. W.

362.37708

CAS

Similarity

N/A

ID: 21728

2-(2,5-dimethylphenoxy)propanoic acid

$$$$ Data

M. F.

C11H14O3

Suppliers	Catalog Number
ChemBridge	4024053
Matrix Scientific	024075

Database	Data ID
PubChem	4207848

M. W.

194.22706

CAS

18996-04-8

Similarity

N/A

ID: 21729

2-(4-phenylphenoxy)acetic acid

$$$$ Data More

M. F.

C14H12O3

Suppliers	Catalog Number
Matrix Scientific	024076
Life Chemicals	F3034-0091
InterBioScreen	BB_SC-8036

Database	Data ID
PubChem	262285

M. W.

228.24328

CAS

13333-86-3

Similarity

N/A

ID: 21730

4-oxo-4-(2-phenylethoxy)butanoic acid

$$$$ Data

M. F.

C12H14O4

Suppliers	Catalog Number
Matrix Scientific	024077

Database	Data ID
PubChem	1653334

M. W.

222.23716

CAS

Similarity

N/A

ID: 21731

4-ethoxybenzoic acid

$$$$ Data More

M. F.

C9H10O3

Suppliers	Catalog Number
Sigma Aldrich	144959
MP Biomedicals	05211721
Alfa Aesar	A12309

Database	Data ID
PubChem	12093

M. W.

166.1739

CAS

619-86-3

Similarity

N/A

ID: 21732

5-oxo-5-(3-phenylpropoxy)pentanoic acid

$$$$ Data

M. F.

C14H18O4

Suppliers	Catalog Number
Matrix Scientific	024079

Database	Data ID
PubChem	4778879

M. W.

250.29032

CAS

Similarity

N/A

ID: 21733

2-ethoxybenzoic acid

$$$$ Data More

M. F.

C9H10O3

Suppliers	Catalog Number
Sigma Aldrich	147494 02564
MP Biomedicals	05214299 02157958
Alfa Aesar	A14758

Database	Data ID
Wikipedia	2-Ethoxybenzoic_acid
PubChem	67252

M. W.

166.1739

CAS

134-11-2

Similarity

N/A

ID: 21734

2-(3-methylphenoxy)butanoic acid

$$$$ Data

M. F.

C11H14O3

Suppliers	Catalog Number
Matrix Scientific	024081
Enamine	EN300-100419

Database	Data ID
PubChem	4778922

M. W.

194.22706

CAS

Similarity

N/A

ID: 21735

2-phenoxybutanoic acid

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
MP Biomedicals	05205497
Matrix Scientific	024082

Database	Data ID
PubChem	57987

M. W.

180.20048

CAS

13794-14-4

Similarity

N/A

ID: 21736

2-(2-nitrophenoxy)acetic acid

$$$$ Data

M. F.

C8H7NO5

Suppliers	Catalog Number
Sigma Aldrich	493821
Alfa Aesar	A16226
Matrix Scientific	024083

Database	Data ID
PubChem	15883

M. W.

197.14488

CAS

1878-87-1

Similarity

N/A

ID: 21737

2-(2-chlorophenoxy)propanoic acid

$$$$ Data

M. F.

C9H9ClO3

Suppliers	Catalog Number
Matrix Scientific	024084
Apollo Scientific	OR12741
Enamine	EN300-31509

Database	Data ID
PubChem	72862

M. W.

200.61896

CAS

25140-86-7

Similarity

N/A

ID: 21738

4-bromo-3,5-dimethylphenol

$$$$ Data More

M. F.

C8H9BrO

Suppliers	Catalog Number
Sigma Aldrich	B64202
MP Biomedicals	05207384
Alfa Aesar	B21684

Database	Data ID
PubChem	81970

M. W.

201.06046

CAS

7463-51-6

Similarity

N/A

ID: 21739

2-(2-nitrophenoxy)propanoic acid

$$$$ Data

M. F.

C9H9NO5

Suppliers	Catalog Number
ChemBridge	3000973
Matrix Scientific	024086

Database	Data ID
PubChem	279855

M. W.

211.17146

CAS

13212-57-2

Similarity

N/A

ID: 21740

2-(4-nitrophenoxy)propanoic acid

$$$$ Data

M. F.

C9H9NO5

Suppliers	Catalog Number
ChemBridge	3013853
Matrix Scientific	024087

Database	Data ID
PubChem	3805139

M. W.

211.17146

CAS

13794-10-0

Similarity

N/A

ID: 21741

2-(4-phenylphenoxy)propanoic acid

$$$$ Data

M. F.

C15H14O3

Suppliers	Catalog Number
Matrix Scientific	024088
Life Chemicals	F3146-0088
Enamine	EN300-33732

Database	Data ID
PubChem	101181

M. W.

242.26986

CAS

5555-13-5

Similarity

N/A

ID: 21742

4-(propan-2-yloxy)benzoic acid

$$$$ Data More

M. F.

C10H12O3

Suppliers	Catalog Number
Sigma Aldrich	366382
Alfa Aesar	A14351
Matrix Scientific	024089

Database	Data ID
PubChem	72972

M. W.

180.20048

CAS

13205-46-4

Similarity

N/A

ID: 21743

2-(4-ethylphenoxy)propanoic acid

$$$$ Data

M. F.

C11H14O3

Suppliers	Catalog Number
ChemBridge	3013846
Matrix Scientific	024090
Enamine	EN300-86523

Database	Data ID
PubChem	3832567

M. W.

194.22706

CAS

99761-31-6

Similarity

N/A

ID: 21744

2-[4-(propan-2-yl)phenoxy]propanoic acid

$$$$ Data

M. F.

C12H16O3

Suppliers	Catalog Number
ChemBridge	3013847
Matrix Scientific	024091
Enamine	EN300-86528

Database	Data ID
PubChem	3252680

M. W.

208.25364

CAS

237412-04-3

Similarity

N/A

ID: 21745

3-bromo-4-butoxybenzoic acid

$$$$ Data

M. F.

C11H13BrO3

Suppliers	Catalog Number
Matrix Scientific	024092
A&J Pharmtech	AJA-O6117

Database	Data ID
PubChem	4778968

M. W.

273.12312

CAS

450416-09-8

Similarity

N/A

ID: 21746

3-bromo-4-(hexyloxy)benzoic acid

$$$$ Data

M. F.

C13H17BrO3

Suppliers	Catalog Number
Matrix Scientific	024093

Database	Data ID
PubChem	4779115

M. W.

301.17628

CAS

Similarity

N/A

ID: 21747

2-(2-bromo-4-phenylphenoxy)acetic acid

$$$$ Data

M. F.

C14H11BrO3

Suppliers	Catalog Number
Matrix Scientific	024094

Database	Data ID
PubChem	4779151

M. W.

307.13934

CAS

Similarity

N/A

ID: 21748

2-(4-bromo-2,6-dimethylphenoxy)propanoic acid

$$$$ Data

M. F.

C11H13BrO3

Suppliers	Catalog Number
Matrix Scientific	024095

Database	Data ID
PubChem	4779150

M. W.

273.12312

CAS

Similarity

N/A

ID: 21749

5-[2-(2-ethoxy-2-oxoethyl)-3-oxopiperazin-1-yl]-5-oxopentanoic acid

$$$$ Data

M. F.

C13H20N2O6

Suppliers	Catalog Number
Matrix Scientific	024096

Database	Data ID
PubChem	4949664

M. W.

300.3077

CAS

Similarity

N/A

ID: 21750

2-(2-bromo-4-chlorophenoxy)propanoic acid

$$$$ Data

M. F.

C9H8BrClO3

Suppliers	Catalog Number
Matrix Scientific	024097
Enamine	EN300-29648

Database	Data ID
PubChem	4779159

M. W.

279.51502

CAS

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