Chembase list of 866358 unique molecular structures

2-[(3-cyano-6-methylpyridin-2-yl)sulfanyl]acetic acid

$$$$ Data

M. F.

C9H8N2O2S

Suppliers	Catalog Number
Matrix Scientific	077925

Database	Data ID
PubChem	685864

M. W.

208.23702

CAS

Similarity

N/A

ID: 72302

2-(1H-indol-4-yl)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid

$$$$ Data

M. F.

C14H16N2O2S

Suppliers	Catalog Number
Matrix Scientific	077926

Database	Data ID
PubChem	53270534

M. W.

276.35404

CAS

Similarity

N/A

ID: 72303

5,5-dimethyl-2-(5-methylfuran-2-yl)-1,3-thiazolidine-4-carboxylic acid

$$$$ Data

M. F.

C11H15NO3S

Suppliers	Catalog Number
Matrix Scientific	077927

Database	Data ID
PubChem	53270546

M. W.

241.3067

CAS

Similarity

N/A

ID: 72304

1,5-diphenyl-1,3,5-triazinane-2-thione

$$$$ Data

M. F.

C15H15N3S

Suppliers	Catalog Number
Matrix Scientific	077928

Database	Data ID
PubChem	71299976

M. W.

269.3647

CAS

Similarity

N/A

ID: 72305

4-{2-[(2,5-dioxo-1-phenylpyrrolidin-3-yl)amino]ethyl}benzene-1-sulfonamide

$$$$ Data

M. F.

C18H19N3O4S

Suppliers	Catalog Number
Matrix Scientific	077929

Database	Data ID
PubChem	2877360

M. W.

373.42616

CAS

Similarity

N/A

ID: 72306

2-(4-bromophenyl)-1H,2H,3H,4H,5H,6H-cyclopenta[c]pyrrole-1,3-dione

$$$$ Data

M. F.

C13H10BrNO2

Suppliers	Catalog Number
Matrix Scientific	077930

Database	Data ID
PubChem	13194959

M. W.

292.128

CAS

Similarity

N/A

ID: 72307

2-[6-(acetyloxy)-4-oxo-4H-chromen-3-yl]-5,5-dimethyl-1,3-thiazolidine-4-carboxyl...

$$$$ Data

M. F.

C17H17NO6S

Suppliers	Catalog Number
Matrix Scientific	077931

Database	Data ID
PubChem	53270497

M. W.

363.38498

CAS

Similarity

N/A

ID: 72308

3-[(2-aminophenyl)sulfanyl]-1-(1,2,3,4-tetrahydroquinolin-1-yl)propan-1-one

$$$$ Data

M. F.

C18H20N2OS

Suppliers	Catalog Number
Matrix Scientific	077932

Database	Data ID
PubChem	71300027

M. W.

312.4292

CAS

Similarity

N/A

ID: 72309

2-[4-(dimethylamino)phenyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid

$$$$ Data

M. F.

C14H20N2O2S

Suppliers	Catalog Number
Matrix Scientific	077933

Database	Data ID
PubChem	5220078

M. W.

280.3858

CAS

Similarity

N/A

ID: 72310

5-(1-benzofuran-2-yl)-1,2,4-triazine-3-thiol

$$$$ Data

M. F.

C11H7N3OS

Suppliers	Catalog Number
Matrix Scientific	077934

Database	Data ID
PubChem	71299977

M. W.

229.25778

CAS

Similarity

N/A

ID: 72311

5,5-dimethyl-2-{1H-pyrrolo[2,3-b]pyridin-3-yl}-1,3-thiazolidine-4-carboxylic aci...

$$$$ Data

M. F.

C13H15N3O2S

Suppliers	Catalog Number
Matrix Scientific	077935

Database	Data ID
PubChem	71299978

M. W.

277.3421

CAS

Similarity

N/A

ID: 72312

3-{[2-(2-chlorophenyl)ethyl]amino}-1-phenylpyrrolidine-2,5-dione

$$$$ Data

M. F.

C18H17ClN2O2

Suppliers	Catalog Number
Matrix Scientific	077936

Database	Data ID
PubChem	3135038

M. W.

328.79278

CAS

Similarity

N/A

ID: 72313

1H,5H-pyrrolo[1,2-a]quinazoline-1,5-dione

$$$$ Data

M. F.

C11H6N2O2

Suppliers	Catalog Number
Matrix Scientific	077937

Database	Data ID
PubChem	71299979

M. W.

198.17754

CAS

Similarity

N/A

ID: 72314

4-pentafluorophenoxyaniline

$$$$ Data

M. F.

C12H6F5NO

Suppliers	Catalog Number
Matrix Scientific	077938

Database	Data ID
PubChem	5164658

M. W.

275.174156

CAS

Similarity

N/A

ID: 72315

N-[4-(2-bromoacetyl)phenyl]benzamide

$$$$ Data

M. F.

C15H12BrNO2

Suppliers	Catalog Number
Matrix Scientific	077939

Database	Data ID
PubChem	12537708

M. W.

318.16528

CAS

Similarity

N/A

ID: 72316

methyl 2-(2-chloroacetamido)-3-phenylpropanoate

$$$$ Data More

M. F.

C12H14ClNO3

Suppliers	Catalog Number
Matrix Scientific	077940
Life Chemicals	F2147-0693
Enamine	EN300-23466

Database	Data ID
PubChem	11196137

M. W.

255.69746

CAS

Similarity

N/A

ID: 72317

2-[(4,6-dimethylpyrimidin-2-yl)sulfanyl]acetohydrazide

$$$$ Data

M. F.

C8H12N4OS

Suppliers	Catalog Number
Matrix Scientific	077941
Enamine	EN300-05819

Database	Data ID
PubChem	668161

M. W.

212.27208

CAS

Similarity

N/A

ID: 72318

2-(1H-1,3-benzodiazol-2-ylsulfanyl)acetohydrazide

$$$$ Data

M. F.

C9H10N4OS

Suppliers	Catalog Number
Alfa Aesar	A17198
Matrix Scientific	077942
Apollo Scientific	OR5453

Database	Data ID
PubChem	676606

M. W.

222.2669

CAS

30065-27-1

Similarity

N/A

ID: 72319

N-(4-chlorophenyl)-2-[4-(2-hydroxyethyl)-3-oxomorpholin-2-yl]acetamide

$$$$ Data

M. F.

C14H17ClN2O4

Suppliers	Catalog Number
Matrix Scientific	077943

Database	Data ID
PubChem	71299980

M. W.

312.74878

CAS

Similarity

N/A

ID: 72320

(4Z)-3-methyl-4-(phenylmethylidene)-4,5-dihydro-1,2-oxazol-5-one

$$$$ Data

M. F.

C11H9NO2

Suppliers	Catalog Number
Matrix Scientific	077944

Database	Data ID
PubChem	5375062

M. W.

187.19466

CAS

Similarity

N/A

ID: 72321

5-[3-(trifluoromethyl)phenyl]furan-2-carbonyl chloride

$$$$ Data

M. F.

C12H6ClF3O2

Suppliers	Catalog Number
Matrix Scientific	077945

Database	Data ID
PubChem	2772078

M. W.

274.6230496

CAS

Similarity

N/A

ID: 72322

4,5,6,7-tetrahydro-1,3-benzothiazol-2-ylmethanamine hydrochloride

$$$$ Data

M. F.

C8H13ClN2S

Suppliers	Catalog Number
Matrix Scientific	077946

Database	Data ID
PubChem	71299254

M. W.

204.72022

CAS

Similarity

N/A

ID: 72323

4-phenylmorpholine-2,6-dione

$$$$ Data

M. F.

C10H9NO3

Suppliers	Catalog Number
Matrix Scientific	077947

Database	Data ID
PubChem	563219

M. W.

191.18336

CAS

Similarity

N/A

ID: 72324

4-(4-methoxyphenyl)morpholine-2,6-dione

$$$$ Data

M. F.

C11H11NO4

Suppliers	Catalog Number
Matrix Scientific	077948

Database	Data ID
PubChem	53273636

M. W.

221.20934

CAS

Similarity

N/A

ID: 72325

4-(3-methoxyphenyl)morpholine-2,6-dione

$$$$ Data

M. F.

C11H11NO4

Suppliers	Catalog Number
Matrix Scientific	077949

Database	Data ID
PubChem	63779039

M. W.

221.20934

CAS

Similarity

N/A

ID: 72326

5-acetyl-6-amino-1,3-dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione

$$$$ Data

M. F.

C8H11N3O3

Suppliers	Catalog Number
Matrix Scientific	077950

Database	Data ID
PubChem	320023

M. W.

197.19124

CAS

Similarity

N/A

ID: 72327

6-amino-5-(2-chloroacetyl)-1,3-dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione

$$$$ Data

M. F.

C8H10ClN3O3

Suppliers	Catalog Number
Matrix Scientific	077951
InterBioScreen	BB_SC-6036
Enamine	EN300-04023

Database	Data ID
PubChem	254701

M. W.

231.6363

CAS

67130-66-9

Similarity

N/A

ID: 72328

6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde

$$$$ Data More

M. F.

C7H9N3O3

Suppliers	Catalog Number
Matrix Scientific	077952
Maybridge	S13809
Apollo Scientific	OR28544

Database	Data ID
PubChem	294688

M. W.

183.16466

CAS

54660-80-9

Similarity

N/A

ID: 72329

6-amino-5-(3-chloropropanoyl)-1,3-dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dion...

$$$$ Data

M. F.

C9H12ClN3O3

Suppliers	Catalog Number
Matrix Scientific	077953

Database	Data ID
PubChem	71300039

M. W.

245.66288

CAS

Similarity

N/A

ID: 72330

6-amino-5-(2-chloropropanoyl)-1,3-dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dion...

$$$$ Data

M. F.

C9H12ClN3O3

Suppliers	Catalog Number
Matrix Scientific	077954
Enamine	EN300-08461

Database	Data ID
PubChem	3796206

M. W.

245.66288

CAS

Similarity

N/A

ID: 72331

6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-sulfonyl chloride

$$$$ Data

M. F.

C6H8ClN3O4S

Suppliers	Catalog Number
Matrix Scientific	077955
Enamine	EN300-87390

Database	Data ID
PubChem	16228938

M. W.

253.66342

CAS

Similarity

N/A

ID: 72332

N-(2-bromophenyl)-2-chloropropanamide

$$$$ Data

M. F.

C9H9BrClNO

Suppliers	Catalog Number
Matrix Scientific	077956
Enamine	EN300-27877

Database	Data ID
PubChem	14833462

M. W.

262.53086

CAS

Similarity

N/A

ID: 72333

2-(2-chloropropanamido)benzoic acid

$$$$ Data

M. F.

C10H10ClNO3

Suppliers	Catalog Number
Matrix Scientific	077957

Database	Data ID
PubChem	15750463

M. W.

227.6443

CAS

Similarity

N/A

ID: 72334

2-chloro-N-(2,5-dimethoxyphenyl)propanamide

$$$$ Data

M. F.

C11H14ClNO3

Suppliers	Catalog Number
Matrix Scientific	077958
Enamine	EN300-09899

Database	Data ID
PubChem	532271

M. W.

243.68676

CAS

Similarity

N/A

ID: 72335

2-chloro-N-(2-ethyl-6-methylphenyl)propanamide

$$$$ Data

M. F.

C12H16ClNO

Suppliers	Catalog Number
Matrix Scientific	077959

Database	Data ID
PubChem	24702864

M. W.

225.71454

CAS

Similarity

N/A

ID: 72336

2-chloro-N-(4-sulfamoylphenyl)propanamide

$$$$ Data

M. F.

C9H11ClN2O3S

Suppliers	Catalog Number
Matrix Scientific	077960

Database	Data ID
PubChem	3928167

M. W.

262.71324

CAS

Similarity

N/A

ID: 72337

2-chloro-N,N-diphenylpropanamide

$$$$ Data

M. F.

C15H14ClNO

Suppliers	Catalog Number
Matrix Scientific	077961

Database	Data ID
PubChem	14880495

M. W.

259.73076

CAS

Similarity

N/A

ID: 72338

4-(2-chloropropanamido)benzoic acid

$$$$ Data

M. F.

C10H10ClNO3

Suppliers	Catalog Number
Matrix Scientific	077962

Database	Data ID
PubChem	20382907

M. W.

227.6443

CAS

Similarity

N/A

ID: 72339

4-(2-chloropropanamido)benzamide

$$$$ Data

M. F.

C10H11ClN2O2

Suppliers	Catalog Number
Matrix Scientific	077963
Enamine	EN300-08996

Database	Data ID
PubChem	3673412

M. W.

226.65954

CAS

Similarity

N/A

ID: 72340

ethyl 4-(2-chloropropanamido)benzoate

$$$$ Data

M. F.

C12H14ClNO3

Suppliers	Catalog Number
Matrix Scientific	077964

Database	Data ID
PubChem	42599434

M. W.

255.69746

CAS

Similarity

N/A

ID: 72341

2-chloro-N-(pyridin-2-yl)propanamide

$$$$ Data

M. F.

C8H9ClN2O

Suppliers	Catalog Number
Matrix Scientific	077965

Database	Data ID
PubChem	16789014

M. W.

184.62286

CAS

Similarity

N/A

ID: 72342

methyl 2-(2-chloropropanamido)benzoate

$$$$ Data

M. F.

C11H12ClNO3

Suppliers	Catalog Number
Matrix Scientific	077966

Database	Data ID
PubChem	12515832

M. W.

241.67088

CAS

Similarity

N/A

ID: 72343

N-(4-bromo-2-fluorophenyl)-2-chloropropanamide

$$$$ Data

M. F.

C9H8BrClFNO

Suppliers	Catalog Number
Matrix Scientific	077967
Enamine	EN300-23341

Database	Data ID
PubChem	16226979

M. W.

280.5213232

CAS

Similarity

N/A

ID: 72344

3-(2-chloropropanamido)benzoic acid

$$$$ Data

M. F.

C10H10ClNO3

Suppliers	Catalog Number
Matrix Scientific	077968

Database	Data ID
PubChem	22695593

M. W.

227.6443

CAS

Similarity

N/A

ID: 72345

2-chloro-N-(4-phenoxyphenyl)propanamide

$$$$ Data

M. F.

C15H14ClNO2

Suppliers	Catalog Number
Matrix Scientific	077969

Database	Data ID
PubChem	4150983

M. W.

275.73016

CAS

Similarity

N/A

ID: 72346

2-chloro-N-(2-methyl-4-nitrophenyl)propanamide

$$$$ Data

M. F.

C10H11ClN2O3

Suppliers	Catalog Number
Matrix Scientific	077970

Database	Data ID
PubChem	12772523

M. W.

242.65894

CAS

Similarity

N/A

ID: 72347

2-chloro-N-(5-methyl-1,3,4-thiadiazol-2-yl)propanamide

$$$$ Data

M. F.

C6H8ClN3OS

Suppliers	Catalog Number
Matrix Scientific	077971

Database	Data ID
PubChem	4461885

M. W.

205.66522

CAS

Similarity

N/A

ID: 72348

N-[4-(1,3-benzoxazol-2-yl)phenyl]-2-chloropropanamide

$$$$ Data

M. F.

C16H13ClN2O2

Suppliers	Catalog Number
Matrix Scientific	077972

Database	Data ID
PubChem	71299981

M. W.

300.73962

CAS

Similarity

N/A

ID: 72349

2-chloro-N-(9-ethyl-9H-carbazol-3-yl)propanamide

$$$$ Data

M. F.

C17H17ClN2O

Suppliers	Catalog Number
Matrix Scientific	077973
Enamine	EN300-08437

Database	Data ID
PubChem	3667388

M. W.

300.78268

CAS

Similarity

N/A

ID: 72350

2-chloro-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)propanamide

$$$$ Data

M. F.

C14H16ClN3O2

Suppliers	Catalog Number
Matrix Scientific	077974

Database	Data ID
PubChem	4583375

M. W.

293.74874

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