Chembase list of 866358 unique molecular structures

$$$$ Data

M. F.

C6H6FN3O

Suppliers	Catalog Number
Bide Pharmatech	BD228553

Database	Data ID
PubChem	55280967

M. W.

155.1297432

CAS

1254073-41-0

Similarity

N/A

ID: 290202

(3-amino-4-hydroxyphenyl)methanesulfonamide

$$$$ Data

M. F.

C7H10N2O3S

Suppliers	Catalog Number
Bide Pharmatech	BD22856
A&J Pharmtech	AJA-O3538

Database	Data ID
PubChem	22341670

M. W.

202.2309

CAS

85237-56-5

Similarity

N/A

ID: 290203

1-hydroxy-6-oxo-1,6-dihydropyridine-2-carboxylic acid

$$$$ Data

M. F.

C6H5NO4

Suppliers	Catalog Number
Bide Pharmatech	BD228569

Database	Data ID
PubChem	11084106

M. W.

155.1082

CAS

94781-89-2

Similarity

N/A

ID: 290204

3-chloro-6-(4-nitrophenoxy)pyridazine

$$$$ Data

M. F.

C10H6ClN3O3

Suppliers	Catalog Number
Bide Pharmatech	BD228571
A&J Pharmtech	AJA-O12590

Database	Data ID
PubChem	6413022

M. W.

251.62594

CAS

1490-54-6

Similarity

N/A

ID: 290205

2,4-dichloro-6-methoxypyridine

$$$$ Data

M. F.

C6H5Cl2NO

Suppliers	Catalog Number
Bide Pharmatech	BD228572

Database	Data ID
PubChem	59872472

M. W.

178.016

CAS

1227572-43-1

Similarity

N/A

ID: 290206

2-[2-(piperazin-1-yl)ethoxy]ethan-1-ol dihydrochloride

$$$$ Data

M. F.

C8H20Cl2N2O2

Suppliers	Catalog Number
Bide Pharmatech	BD22858

Database	Data ID
PubChem	3020606

M. W.

247.1626

CAS

85293-16-9

Similarity

N/A

ID: 290207

4,5-difluoro-2-methyl-1H-indole

$$$$ Data

M. F.

C9H7F2N

Suppliers	Catalog Number
Bide Pharmatech	BD22863
A&J Pharmtech	AJA-O17136

Database	Data ID
PubChem	13188569

M. W.

167.1553864

CAS

85462-60-8

Similarity

N/A

ID: 290208

(4-chloro-2-fluoro-3-methoxyphenyl)boronic acid

$$$$ Data

M. F.

C7H7BClFO3

Suppliers	Catalog Number
Bide Pharmatech	BD228646
A&J Pharmtech	AJA-O9016 AJA-O8152

Database	Data ID
PubChem	44129706

M. W.

204.3910832

CAS

944129-07-1

Similarity

N/A

ID: 290209

5-bromo-3-chloro-2-fluorophenol

$$$$ Data

M. F.

C6H3BrClFO

Suppliers	Catalog Number
Bide Pharmatech	BD228656

Database	Data ID
PubChem	54759056

M. W.

225.4428232

CAS

1305322-97-7

Similarity

N/A

ID: 290210

5-(chloromethyl)-1,3-thiazole hydrochloride

$$$$ Data

M. F.

C4H5Cl2NS

Suppliers	Catalog Number
Bide Pharmatech	BD228657

Database	Data ID
PubChem	22319457

M. W.

170.0602

CAS

131052-44-3

Similarity

N/A

ID: 290211

methyl 4-(1,3-thiazol-2-yloxy)benzoate

$$$$ Data

M. F.

C11H9NO3S

Suppliers	Catalog Number
Bide Pharmatech	BD228676

Database	Data ID
PubChem	46738264

M. W.

235.25906

CAS

1189999-01-6

Similarity

N/A

ID: 290212

7-methyl-2,3,4,5-tetrahydro-1H-1-benzazepin-5-amine dihydrochloride

$$$$ Data

M. F.

C11H18Cl2N2

Suppliers	Catalog Number
Bide Pharmatech	BD228705

Database	Data ID
PubChem	70700295

M. W.

249.18002

CAS

Similarity

N/A

ID: 290213

1,5-bis(3-bromobenzenesulfonyl)-1,5-diazocane

$$$$ Data

M. F.

C18H20Br2N2O4S2

Suppliers	Catalog Number
Bide Pharmatech	BD228714

Database	Data ID
PubChem	46739325

M. W.

552.3004

CAS

1133116-31-0

Similarity

N/A

ID: 290214

bis[(5-fluoropyridin-3-yl)methyl]amine

$$$$ Data

M. F.

C12H11F2N3

Suppliers	Catalog Number
Bide Pharmatech	BD228715

Database	Data ID
PubChem	46739182

M. W.

235.2326464

CAS

1073372-18-5

Similarity

N/A

ID: 290215

1-({[(tert-butoxy)carbonyl]amino}methyl)cyclopropane-1-carboxylic acid

$$$$ Data

M. F.

C10H17NO4

Suppliers	Catalog Number
Bide Pharmatech	BD228716

Database	Data ID
PubChem	51340346

M. W.

215.24628

CAS

204376-48-7

Similarity

N/A

ID: 290216

tert-butyl N-(5-bromo-2-chloropyridin-3-yl)carbamate

$$$$ Data

M. F.

C10H12BrClN2O2

Suppliers	Catalog Number
Bide Pharmatech	BD228717

Database	Data ID
PubChem	10870536

M. W.

307.57148

CAS

193888-15-2

Similarity

N/A

ID: 290217

6-hydroxy-5-nitropyridine-3-carbonitrile

$$$$ Data

M. F.

C6H3N3O3

Suppliers	Catalog Number
Bide Pharmatech	BD229067

Database	Data ID
PubChem	18509838

M. W.

165.10632

CAS

320405-84-3

Similarity

N/A

ID: 290218

6-(3-nitrophenyl)pyridin-2-ol

$$$$ Data

M. F.

C11H8N2O3

Suppliers	Catalog Number
Bide Pharmatech	BD229068

Database	Data ID
PubChem	53217772

M. W.

216.19282

CAS

1111110-56-5

Similarity

N/A

ID: 290219

benzyl N-[(E)-2-(4-bromophenyl)ethenyl]carbamate

$$$$ Data

M. F.

C16H14BrNO2

Suppliers	Catalog Number
Bide Pharmatech	BD228953

Database	Data ID
PubChem	53216882

M. W.

332.19186

CAS

1228957-12-7

Similarity

N/A

ID: 290220

2-(4,5-difluoro-2-nitrophenyl)acetic acid

$$$$ Data

M. F.

C8H5F2NO4

Suppliers	Catalog Number
Bide Pharmatech	BD228954

Database	Data ID
PubChem	46738673

M. W.

217.1264064

CAS

1000339-22-9

Similarity

N/A

ID: 290221

4-bromo-N,N-dimethyl-2-nitroaniline

$$$$ Data

M. F.

C8H9BrN2O2

Suppliers	Catalog Number
Bide Pharmatech	BD228956
A&J Pharmtech	AJA-O2832

Database	Data ID
PubChem	11961552

M. W.

245.07326

CAS

829-02-7

Similarity

N/A

ID: 290222

1,3-dimethyl 2-(3-fluoro-2-nitrophenyl)propanedioate

$$$$ Data

M. F.

C11H10FNO6

Suppliers	Catalog Number
Bide Pharmatech	BD228957

Database	Data ID
PubChem	24824212

M. W.

271.1986032

CAS

872141-24-7

Similarity

N/A

ID: 290223

8-ethoxy-5-nitroquinoline

$$$$ Data

M. F.

C11H10N2O3

Suppliers	Catalog Number
Bide Pharmatech	BD228960

Database	Data ID
PubChem	9429849

M. W.

218.2087

CAS

19746-57-7

Similarity

N/A

ID: 290224

N-ethyl-2,3-difluoro-6-nitroaniline

$$$$ Data

M. F.

C8H8F2N2O2

Suppliers	Catalog Number
Bide Pharmatech	BD228962

Database	Data ID
PubChem	54759079

M. W.

202.1581264

CAS

1248209-18-8

Similarity

N/A

ID: 290225

ethyl 4-(4-nitrophenyl)benzoate

$$$$ Data

M. F.

C15H13NO4

Suppliers	Catalog Number
Bide Pharmatech	BD228963

Database	Data ID
PubChem	11391605

M. W.

271.26802

CAS

6242-99-5

Similarity

N/A

ID: 290226

2-fluoro-1-nitro-4-(propan-2-yloxy)benzene

$$$$ Data

M. F.

C9H10FNO3

Suppliers	Catalog Number
Bide Pharmatech	BD228965

Database	Data ID
PubChem	13538652

M. W.

199.1790032

CAS

28987-50-0

Similarity

N/A

ID: 290227

4-bromo-2-chloro-5-nitroaniline

$$$$ Data

M. F.

C6H4BrClN2O2

Suppliers	Catalog Number
Bide Pharmatech	BD229088

Database	Data ID
PubChem	53216256

M. W.

251.46516

CAS

872820-00-3

Similarity

N/A

ID: 290228

4-bromo-2-chloro-6-nitroaniline

$$$$ Data

M. F.

C6H4BrClN2O2

Suppliers	Catalog Number
Bide Pharmatech	BD229089

Database	Data ID
PubChem	13443119

M. W.

251.46516

CAS

34033-41-5

Similarity

N/A

ID: 290229

1-(2-bromo-5-chlorophenyl)-4-methylpiperazine

$$$$ Data

M. F.

C11H14BrClN2

Suppliers	Catalog Number
Bide Pharmatech	BD229090

Database	Data ID
PubChem	53217036

M. W.

289.59926

CAS

1261940-25-3

Similarity

N/A

ID: 290230

1-(4-bromo-3-chlorophenyl)piperidine

$$$$ Data

M. F.

C11H13BrClN

Suppliers	Catalog Number
Bide Pharmatech	BD229091

Database	Data ID
PubChem	54759051

M. W.

274.58462

CAS

1311197-81-5

Similarity

N/A

ID: 290231

1-(3-bromo-5-chlorophenyl)pyrrolidine

$$$$ Data

M. F.

C10H11BrClN

Suppliers	Catalog Number
Bide Pharmatech	BD229092

Database	Data ID
PubChem	53217071

M. W.

260.55804

CAS

1261895-87-7

Similarity

N/A

ID: 290232

4-fluoro-1-nitro-2-(propan-2-yloxy)benzene

$$$$ Data

M. F.

C9H10FNO3

Suppliers	Catalog Number
Bide Pharmatech	BD228966

Database	Data ID
PubChem	10631832

M. W.

199.1790032

CAS

28987-46-4

Similarity

N/A

ID: 290233

3-(4-fluoro-3-methoxyphenyl)-5-nitrobenzoic acid

$$$$ Data

M. F.

C14H10FNO5

Suppliers	Catalog Number
Bide Pharmatech	BD228968

Database	Data ID
PubChem	53226585

M. W.

291.2313032

CAS

1261967-46-7

Similarity

N/A

ID: 290234

4-fluoro-1-nitro-2-(pentan-2-yloxy)benzene

$$$$ Data

M. F.

C11H14FNO3

Suppliers	Catalog Number
Bide Pharmatech	BD228969

Database	Data ID
PubChem	54758765

M. W.

227.2321632

CAS

1314987-41-1

Similarity

N/A

ID: 290235

3-amino-2,3,4,5-tetrahydro-1H-1-benzazepin-2-one

$$$$ Data

M. F.

C10H12N2O

Suppliers	Catalog Number
Bide Pharmatech	BD22898
A&J Pharmtech	AJA-O34005

Database	Data ID
PubChem	4434433

M. W.

176.21508

CAS

86499-35-6

Similarity

N/A

ID: 290236

2-(3-fluoro-2-nitrophenyl)acetic acid

$$$$ Data

M. F.

C8H6FNO4

Suppliers	Catalog Number
Bide Pharmatech	BD229062

Database	Data ID
PubChem	24824213

M. W.

199.1359432

CAS

872141-25-8

Similarity

N/A

ID: 290237

3-fluoro-5-nitropyridin-2-ol

$$$$ Data

M. F.

C5H3FN2O3

Suppliers	Catalog Number
Bide Pharmatech	BD229064

Database	Data ID
PubChem	46738834

M. W.

158.0873232

CAS

1033202-14-0

Similarity

N/A

ID: 290238

1-[2-nitro-5-(trifluoromethyl)phenyl]piperidin-4-ol

$$$$ Data

M. F.

C12H13F3N2O3

Suppliers	Catalog Number
Bide Pharmatech	BD229069

Database	Data ID
PubChem	46739135

M. W.

290.2384296

CAS

1072944-51-4

Similarity

N/A

ID: 290239

1-(3-methoxyphenyl)-4-nitrobenzene

$$$$ Data

M. F.

C13H11NO3

Suppliers	Catalog Number
Bide Pharmatech	BD229075

Database	Data ID
PubChem	13262511

M. W.

229.23134

CAS

107624-96-4

Similarity

N/A

ID: 290240

1-(3-methoxyphenyl)-3-nitrobenzene

$$$$ Data

M. F.

C13H11NO3

Suppliers	Catalog Number
Bide Pharmatech	BD229076

Database	Data ID
PubChem	14784156

M. W.

229.23134

CAS

128923-93-3

Similarity

N/A

ID: 290241

N-methyl-2-nitro-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)aniline

$$$$ Data

M. F.

C13H19BN2O4

Suppliers	Catalog Number
Bide Pharmatech	BD229078

Database	Data ID
PubChem	46739449

M. W.

278.11196

CAS

956821-93-5

Similarity

N/A

ID: 290242

5-bromo-3-chloro-N-cyclohexylpyridin-2-amine

$$$$ Data

M. F.

C11H14BrClN2

Suppliers	Catalog Number
Bide Pharmatech	BD229082

Database	Data ID
PubChem	53217364

M. W.

289.59926

CAS

1280786-98-2

Similarity

N/A

ID: 290243

4-(3-bromo-5-chlorophenyl)morpholine

$$$$ Data

M. F.

C10H11BrClNO

Suppliers	Catalog Number
Bide Pharmatech	BD229086

Database	Data ID
PubChem	53217088

M. W.

276.55744

CAS

1259445-15-2

Similarity

N/A

ID: 290244

4-(2-bromo-5-chlorophenyl)morpholine

$$$$ Data

M. F.

C10H11BrClNO

Suppliers	Catalog Number
Bide Pharmatech	BD229087

Database	Data ID
PubChem	53217037

M. W.

276.55744

CAS

1257665-20-5

Similarity

N/A

ID: 290245

tert-butyl N-[1-(4-bromophenyl)cyclopropyl]carbamate

$$$$ Data

M. F.

C14H18BrNO2

Suppliers	Catalog Number
Bide Pharmatech	BD228718

Database	Data ID
PubChem	53216208

M. W.

312.20222

CAS

360773-84-8

Similarity

N/A

ID: 290246

tert-butyl N-(1-cyclopropanecarbonylpiperidin-4-yl)carbamate

$$$$ Data

M. F.

C14H24N2O3

Suppliers	Catalog Number
Bide Pharmatech	BD228719

Database	Data ID
PubChem	37967181

M. W.

268.35196

CAS

1152430-26-6

Similarity

N/A

ID: 290247

tert-butyl N-(1-ethylpiperidin-4-yl)carbamate

$$$$ Data

M. F.

C12H24N2O2

Suppliers	Catalog Number
Bide Pharmatech	BD228720

Database	Data ID
PubChem	20801239

M. W.

228.33116

CAS

534595-56-7

Similarity

N/A

ID: 290248

[5-({[(tert-butoxy)carbonyl]amino}methyl)thiophen-2-yl]boronic acid

$$$$ Data

M. F.

C10H16BNO4S

Suppliers	Catalog Number
Bide Pharmatech	BD228723

Database	Data ID
PubChem	46738981

M. W.

257.11434

CAS

1072951-39-3

Similarity

N/A

ID: 290249

(4S)-4-{[(tert-butoxy)carbonyl]amino}pentanoic acid

$$$$ Data

M. F.

C10H19NO4

Suppliers	Catalog Number
Bide Pharmatech	BD228725

Database	Data ID
PubChem	2755918

M. W.

217.26216

CAS

207924-92-3

Similarity

N/A

ID: 290250

2-(3-{[(tert-butoxy)carbonyl]amino}phenyl)benzoic acid

$$$$ Data

M. F.

C18H19NO4

Suppliers	Catalog Number
Bide Pharmatech	BD228726

Database	Data ID
PubChem	53218484

M. W.

313.34776

CAS

927801-48-7

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