Chembase list of 866358 unique molecular structures

1-(1H-imidazol-1-yl)propan-2-amine dihydrochloride

$$$$ Data

M. F.

C6H13Cl2N3

Suppliers	Catalog Number
Apollo Scientific	OR12978

Database	Data ID
PubChem	17749827

M. W.

198.09352

CAS

Similarity

N/A

ID: 76402

1-(1H-imidazol-1-yl)-3-methylbutan-2-amine dihydrochloride

$$$$ Data

M. F.

C8H17Cl2N3

Suppliers	Catalog Number
Apollo Scientific	OR12979

Database	Data ID
PubChem	17998846

M. W.

226.14668

CAS

Similarity

N/A

ID: 76403

2-(1H-imidazol-1-yl)-1-phenylethan-1-amine dihydrochloride

$$$$ Data

M. F.

C11H15Cl2N3

Suppliers	Catalog Number
Apollo Scientific	OR12980

Database	Data ID
PubChem	17998847

M. W.

260.1629

CAS

Similarity

N/A

ID: 76404

4-(pyridin-3-yl)piperidin-4-ol

$$$$ Data

M. F.

C10H14N2O

Suppliers	Catalog Number
ChemBridge	4005873
Apollo Scientific	OR12982

Database	Data ID
PubChem	4989167

M. W.

178.23096

CAS

50461-59-1

Similarity

N/A

ID: 76405

4-(pyridin-4-yl)piperidin-4-ol

$$$$ Data

M. F.

C10H14N2O

Suppliers	Catalog Number
Apollo Scientific	OR12983

Database	Data ID
PubChem	3726959

M. W.

178.23096

CAS

233261-75-1

Similarity

N/A

ID: 76406

3-[(4-methoxyphenyl)methyl]piperidine hydrochloride

$$$$ Data

M. F.

C13H20ClNO

Suppliers	Catalog Number
Apollo Scientific	OR12984

Database	Data ID
PubChem	17998835

M. W.

241.757

CAS

Similarity

N/A

ID: 76407

3-[(4-chlorophenyl)methyl]piperidine hydrochloride

$$$$ Data

M. F.

C12H17Cl2N

Suppliers	Catalog Number
Apollo Scientific	OR12985
Enamine	EN300-76513
A&J Pharmtech	AJA-O33450

Database	Data ID
PubChem	17039567

M. W.

246.17608

CAS

1171692-94-6

Similarity

N/A

ID: 76408

3-[(4-methylphenyl)methyl]piperidine hydrochloride

$$$$ Data

M. F.

C13H20ClN

Suppliers	Catalog Number
Apollo Scientific	OR12987

Database	Data ID
PubChem	17749771

M. W.

225.7576

CAS

625454-26-4

Similarity

N/A

ID: 76409

3-[(2-methoxyphenyl)methyl]piperidine hydrochloride

$$$$ Data

M. F.

C13H20ClNO

Suppliers	Catalog Number
Apollo Scientific	OR12989
Enamine	EN300-64857

Database	Data ID
PubChem	17749773

M. W.

241.757

CAS

Similarity

N/A

ID: 76410

2-bromo-1-(pyridin-2-yl)ethan-1-one hydrobromide

$$$$ Data More

M. F.

C7H7Br2NO

Suppliers	Catalog Number
Maybridge	CC04005
Apollo Scientific	OR1299
Chemik	CHH00329

Database	Data ID
PubChem	2776231

M. W.

280.94458

CAS

17570-98-8

Similarity

N/A

ID: 76411

3-[(2-chlorophenyl)methyl]piperidine hydrochloride

$$$$ Data

M. F.

C12H17Cl2N

Suppliers	Catalog Number
Apollo Scientific	OR12990

Database	Data ID
PubChem	17749774

M. W.

246.17608

CAS

Similarity

N/A

ID: 76412

3-(piperidin-3-ylmethyl)pyridine dihydrochloride

$$$$ Data

M. F.

C11H18Cl2N2

Suppliers	Catalog Number
Apollo Scientific	OR12991

Database	Data ID
PubChem	17749770

M. W.

249.18002

CAS

Similarity

N/A

ID: 76413

oxalic acid; pyrazin-2-ylmethanamine

$$$$ Data

M. F.

C7H9N3O4

Suppliers	Catalog Number
Apollo Scientific	OR12992

Database	Data ID
PubChem	17749868

M. W.

199.16406

CAS

Similarity

N/A

ID: 76414

oxalic acid; pyrimidin-2-ylmethanamine

$$$$ Data

M. F.

C7H9N3O4

Suppliers	Catalog Number
Apollo Scientific	OR12993

Database	Data ID
PubChem	17749869

M. W.

199.16406

CAS

Similarity

N/A

ID: 76415

cyclopentylmethanesulfonyl chloride

$$$$ Data

M. F.

C6H11ClO2S

Suppliers	Catalog Number
Apollo Scientific	OR12996
Enamine	EN300-109260

Database	Data ID
PubChem	2735404

M. W.

182.66834

CAS

Similarity

N/A

ID: 76416

cyclohexylmethanesulfonyl chloride

$$$$ Data

M. F.

C7H13ClO2S

Suppliers	Catalog Number
Alfa Aesar	H35317
Apollo Scientific	OR12997
Enamine	EN300-53764

Database	Data ID
PubChem	3871475

M. W.

196.69492

CAS

4352-30-1

Similarity

N/A

ID: 76417

3-(4-methoxyphenoxy)piperidine

$$$$ Data

M. F.

C12H17NO2

Suppliers	Catalog Number
Apollo Scientific	OR12999
Bide Pharmatech	BD188609

Database	Data ID
PubChem	3345976

M. W.

207.26888

CAS

38247-88-0

Similarity

N/A

ID: 76418

4-(pyridin-3-yl)-1,3-thiazol-2-amine

$$$$ Data More

M. F.

C8H7N3S

Suppliers	Catalog Number
ChemBridge	4027852
Alfa Aesar	H58630
Apollo Scientific	OR1300

Database	Data ID
PubChem	154893

M. W.

177.22628

CAS

30235-27-9

Similarity

N/A

ID: 76419

2-(piperidin-3-yloxy)pyridine

$$$$ Data

M. F.

C10H14N2O

Suppliers	Catalog Number
Apollo Scientific	OR13002

Database	Data ID
PubChem	3825695

M. W.

178.23096

CAS

Similarity

N/A

ID: 76420

4-(piperidin-3-yloxy)pyridine dihydrochloride

$$$$ Data

M. F.

C10H16Cl2N2O

Suppliers	Catalog Number
Apollo Scientific	OR13003

Database	Data ID
PubChem	17998834

M. W.

251.15284

CAS

Similarity

N/A

ID: 76421

3-benzylpiperidine hydrochloride

$$$$ Data

M. F.

C12H18ClN

Suppliers	Catalog Number
Apollo Scientific	OR13004

Database	Data ID
PubChem	16187876

M. W.

211.73102

CAS

Similarity

N/A

ID: 76422

2-cyclohexylpiperidine hydrochloride

$$$$ Data

M. F.

C11H22ClN

Suppliers	Catalog Number
Apollo Scientific	OR13013

Database	Data ID
PubChem	12229455

M. W.

203.75208

CAS

Similarity

N/A

ID: 76423

3-(4-methylbenzenesulfonyl)pyrrolidine hydrochloride

$$$$ Data

M. F.

C11H16ClNO2S

Suppliers	Catalog Number
Apollo Scientific	OR13014

Database	Data ID
PubChem	17749891

M. W.

261.76824

CAS

Similarity

N/A

ID: 76424

methyl[2-(4-methylbenzenesulfonyl)ethyl]amine hydrochloride

$$$$ Data

M. F.

C10H16ClNO2S

Suppliers	Catalog Number
Apollo Scientific	OR13015

Database	Data ID
PubChem	17749892

M. W.

249.75754

CAS

Similarity

N/A

ID: 76425

3-cyclohexylpiperidine hydrochloride

$$$$ Data

M. F.

C11H22ClN

Suppliers	Catalog Number
Apollo Scientific	OR13016

Database	Data ID
PubChem	17749763

M. W.

203.75208

CAS

Similarity

N/A

ID: 76426

4-cyclohexylpiperidine hydrochloride

$$$$ Data

M. F.

C11H22ClN

Suppliers	Catalog Number
Apollo Scientific	OR13017

Database	Data ID
PubChem	17749781

M. W.

203.75208

CAS

60601-62-9

Similarity

N/A

ID: 76427

1,2,3,4-tetrabromo-5-(2,3,4,5-tetrabromophenoxy)benzene

$$$$ Data

M. F.

C12H2Br8O

Suppliers	Catalog Number
Apollo Scientific	OR13018

Database	Data ID
PubChem	6537506

M. W.

801.37568

CAS

Similarity

N/A

ID: 76428

1-(3,5-dinitrophenyl)ethan-1-one

$$$$ Data

M. F.

C8H6N2O5

Suppliers	Catalog Number
Sigma Aldrich	631299
Apollo Scientific	OR13020
Chemik	CHB71232

Database	Data ID
PubChem	258569

M. W.

210.14364

CAS

14401-75-3

Similarity

N/A

ID: 76429

2-amino-3,4,5-trimethoxybenzoic acid

$$$$ Data More

M. F.

C10H13NO5

Suppliers	Catalog Number
Sigma Aldrich	631272
Alfa Aesar	A14042
Apollo Scientific	OR13023

Database	Data ID
PubChem	96602

M. W.

227.21392

CAS

61948-85-4

Similarity

N/A

ID: 76430

3-iodo-4-methylaniline

$$$$ Data More

M. F.

C7H8IN

Suppliers	Catalog Number
Sigma Aldrich	631264
MP Biomedicals	05207518
Alfa Aesar	A11485

Database	Data ID
PubChem	118889

M. W.

233.04959

CAS

35944-64-0

Similarity

N/A

ID: 76431

1-(3-iodo-4-methoxyphenyl)ethan-1-one

$$$$ Data

M. F.

C9H9IO2

Suppliers	Catalog Number
Sigma Aldrich	631515
Apollo Scientific	OR13025

Database	Data ID
PubChem	11011237

M. W.

276.07103

CAS

79324-77-9

Similarity

N/A

ID: 76432

4-(aminomethyl)-2,6-dimethoxyphenol hydrochloride

$$$$ Data

M. F.

C9H14ClNO3

Suppliers	Catalog Number
Apollo Scientific	OR13026
Enamine	EN300-57068

Database	Data ID
PubChem	44118729

M. W.

219.66536

CAS

Similarity

N/A

ID: 76433

5-(aminomethyl)-2-methoxyphenol hydrochloride

$$$$ Data

M. F.

C8H12ClNO2

Suppliers	Catalog Number
Sigma Aldrich	631337
Apollo Scientific	OR13028
Enamine	EN300-40869

Database	Data ID
PubChem	16217646

M. W.

189.63938

CAS

42365-68-4

Similarity

N/A

ID: 76434

(1-methyl-1H-pyrrol-2-yl)boronic acid

$$$$ Data

M. F.

C5H8BNO2

Suppliers	Catalog Number
Apollo Scientific	OR13033
A&J Pharmtech	AJA-O33328

Database	Data ID
PubChem	22172837

M. W.

124.93352

CAS

911318-81-5

Similarity

N/A

ID: 76435

1-bromo-4-propylbenzene

$$$$ Data More

M. F.

C9H11Br

Suppliers	Catalog Number
Sigma Aldrich	319880
Alfa Aesar	H26236
Apollo Scientific	OR13034

Database	Data ID
PubChem	136374

M. W.

199.08764

CAS

588-93-2

Similarity

N/A

ID: 76436

2,6-dimethyl-4-nitrophenol

$$$$ Data

M. F.

C8H9NO3

Suppliers	Catalog Number
Sigma Aldrich	132713 40890
Alfa Aesar	A15472
Apollo Scientific	OR13035

Database	Data ID
PubChem	17030

M. W.

167.16196

CAS

2423-71-4

Similarity

N/A

ID: 76437

hydrogen bromide

$$$$ Data More

M. F.

BrH

Suppliers	Catalog Number
Sigma Aldrich	295418 70046 35002 (more...)
MP Biomedicals	02194053
Alfa Aesar	10991 36694 A14475 (more...)

Database	Data ID
Wikipedia	Hydrobromic_acid Hydrogen_bromide
PubChem	260

M. W.

80.91194

CAS

10035-10-6

Similarity

N/A

ID: 76438

4-chlorophenyl chloroformate

$$$$ Data

M. F.

C7H4Cl2O2

Suppliers	Catalog Number
Sigma Aldrich	363871
Alfa Aesar	31175
Apollo Scientific	OR13039

Database	Data ID
PubChem	139059

M. W.

191.01146

CAS

7693-45-0

Similarity

N/A

ID: 76439

methyl 3,4,5-trimethoxybenzoate

$$$$ Data More

M. F.

C11H14O5

Suppliers	Catalog Number
Sigma Aldrich	M86006
BioBioPha	BBP02797
MP Biomedicals	05216767

Database	Data ID
PubChem	15956

M. W.

226.22586

CAS

1916-07-0

Similarity

N/A

ID: 76440

3,4,5-trimethoxybenzoic acid

$$$$ Data More

M. F.

C10H12O5

Suppliers	Catalog Number
Sigma Aldrich	T69000 92150
BioBioPha	BBP02698
MP Biomedicals	05219443

Database	Data ID
Wikipedia	Eudesmic_acid
PubChem	8357

M. W.

212.19928

CAS

573-11-5

Similarity

N/A

ID: 76441

2,4-dichloro-6-phenoxy-1,3,5-triazine

$$$$ Data

M. F.

C9H5Cl2N3O

Suppliers	Catalog Number
Apollo Scientific	OR13045

Database	Data ID
PubChem	20807

M. W.

242.0615

CAS

Similarity

N/A

ID: 76442

4-oxo-4H-chromene-3-carbaldehyde

$$$$ Data More

M. F.

C10H6O3

Suppliers	Catalog Number
Sigma Aldrich	383449
Alfa Aesar	A15438
Maybridge	RF00039

Database	Data ID
PubChem	87112

M. W.

174.15284

CAS

17422-74-1

Similarity

N/A

ID: 76443

6-bromo-4-hydroxy-2H-chromen-2-one

$$$$ Data

M. F.

C9H5BrO3

Suppliers	Catalog Number
Apollo Scientific	OR13051

Database	Data ID
PubChem	54691404

M. W.

241.0382

CAS

Similarity

N/A

ID: 76444

6,8-dichloro-4-hydroxy-2H-chromen-2-one

$$$$ Data

M. F.

C9H4Cl2O3

Suppliers	Catalog Number
Apollo Scientific	OR13052

Database	Data ID
PubChem	54691405

M. W.

231.03226

CAS

Similarity

N/A

ID: 76445

4-hydroxy-7-methyl-2H-chromen-2-one

$$$$ Data

M. F.

C10H8O3

Suppliers	Catalog Number
Apollo Scientific	OR13054

Database	Data ID
PubChem	54685307

M. W.

176.16872

CAS

Similarity

N/A

ID: 76446

4-oxo-4H-chromene-3-carbonitrile

$$$$ Data More

M. F.

C10H5NO2

Suppliers	Catalog Number
Sigma Aldrich	383481
Alfa Aesar	A15687
Maybridge	RF01263

Database	Data ID
PubChem	521298

M. W.

171.1522

CAS

50743-17-4

Similarity

N/A

ID: 76447

1-N,1-N-dimethyl-4-nitrobenzene-1,3-diamine

$$$$ Data

M. F.

C8H11N3O2

Suppliers	Catalog Number
Apollo Scientific	OR13066
Chemik	CHB79061

Database	Data ID
PubChem	2733451

M. W.

181.19184

CAS

20691-71-8

Similarity

N/A

ID: 76448

4-phenyl-1,2,3-thiadiazole-5-carbonyl chloride

$$$$ Data

M. F.

C9H5ClN2OS

Suppliers	Catalog Number
Apollo Scientific	OR13067

Database	Data ID
PubChem	18526397

M. W.

224.6668

CAS

Similarity

N/A

ID: 76449

1-N,1-N-dimethyl-3-nitrobenzene-1,4-diamine

$$$$ Data

M. F.

C8H11N3O2

Suppliers	Catalog Number
Apollo Scientific	OR13068
A&J Pharmtech	AJA-O3127

Database	Data ID
PubChem	2733452

M. W.

181.19184

CAS

16293-12-2

Similarity

N/A

ID: 76450

4-butoxy-2-nitroaniline

$$$$ Data

M. F.

C10H14N2O3

Suppliers	Catalog Number
Apollo Scientific	OR13069

Database	Data ID
PubChem	2733583

M. W.

210.22976

CAS

3987-86-8

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