Chembase list of 866358 unique molecular structures

1,3-diethyl 2,2-bis(2-cyanoethyl)propanedioate

$$$$ Data

M. F.

C13H18N2O4

Suppliers	Catalog Number
MP Biomedicals	05211106
Alfa Aesar	B23277
Bide Pharmatech	BD14919

Database	Data ID
PubChem	74046

M. W.

266.29302

CAS

1444-05-9

Similarity

N/A

ID: 109452

3-(2-cyanoethoxy)propanenitrile

$$$$ Data More

M. F.

C6H8N2O

Suppliers	Catalog Number
Sigma Aldrich	C91204 75962
MP Biomedicals	05211110
Alfa Aesar	A11005

Database	Data ID
PubChem	15452

M. W.

124.14052

CAS

1656-48-0

Similarity

N/A

ID: 109453

cyclohexyl acetate

$$$$ Data

M. F.

C8H14O2

Suppliers	Catalog Number
Sigma Aldrich	W234907 246514
MP Biomedicals	05211111

Database	Data ID
PubChem	12146

M. W.

142.19556

CAS

622-45-7

Similarity

N/A

ID: 109454

but-2-enenitrile

$$$$ Data

M. F.

C4H5N

Suppliers	Catalog Number
Sigma Aldrich	252522 28080
MP Biomedicals	05211114

Database	Data ID
PubChem	637921

M. W.

67.0892

CAS

4786-20-3

Similarity

N/A

ID: 109455

cobalt(2+) ion diammonium hexahydrate disulfate

$$$$ Data

M. F.

CoH20N2O14S2

Suppliers	Catalog Number
MP Biomedicals	05211119
Alfa Aesar	A10627

Database	Data ID
PubChem	24884270

M. W.

395.227

CAS

13596-46-8

Similarity

N/A

ID: 109456

tricobalt(2+) ion diarsorate

$$$$ Data

M. F.

As2Co3O8

Suppliers	Catalog Number
MP Biomedicals	05211120

Database	Data ID
PubChem	32602

M. W.

454.638

CAS

24719-19-5

Similarity

N/A

ID: 109457

cobalt(2+) ion dibenzoate

$$$$ Data

M. F.

C14H10CoO4

Suppliers	Catalog Number
MP Biomedicals	05211121
Alfa Aesar	87380

Database	Data ID
PubChem	164760

M. W.

301.16

CAS

932-69-4

Similarity

N/A

ID: 109458

cobalt(2+) ion bis(octadec-9-enoate)

$$$$ Data

M. F.

C36H66CoO4

Suppliers	Catalog Number
MP Biomedicals	05211126

Database	Data ID
PubChem	22463760

M. W.

621.84004

CAS

14666-94-5

Similarity

N/A

ID: 109459

but-2-enoyl but-2-enoate

$$$$ Data

M. F.

C8H10O3

Suppliers	Catalog Number
Sigma Aldrich	130974
MP Biomedicals	05211133
Bide Pharmatech	BD122428

Database	Data ID
PubChem	6049834

M. W.

154.1632

CAS

623-68-7

Similarity

N/A

ID: 109460

2-(1-methylcarbamimidamido)acetic acid; dichlorozinc

$$$$ Data

M. F.

C4H9Cl2N3O2Zn

Suppliers	Catalog Number
MP Biomedicals	05211134

Database	Data ID
PubChem	25021459

M. W.

267.41916

CAS

16045-72-0

Similarity

N/A

ID: 109461

ammonium vanadiumoylolate

$$$$ Data

M. F.

H4NO3V

Suppliers	Catalog Number
MP Biomedicals	05211137
Alfa Aesar	11091 36213 10902

Database	Data ID
PubChem	516859

M. W.

116.97816

CAS

7803-55-6

Similarity

N/A

ID: 109462

14-acetyl-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-6,13-dien-5-...

$$$$ Data

M. F.

C21H28O2

Suppliers	Catalog Number
MP Biomedicals	05211142

Database	Data ID
PubChem	628507

M. W.

312.44582

CAS

1096-38-4

Similarity

N/A

ID: 109463

3-phenylprop-2-en-1-yl acetate

$$$$ Data More

M. F.

C11H12O2

Suppliers	Catalog Number
Sigma Aldrich	166170 W229318 42759
BioBioPha	BBP01516
MP Biomedicals	05211144

Database	Data ID
PubChem	5282110

M. W.

176.21178

CAS

103-54-8

Similarity

N/A

ID: 109464

16-oxabicyclo[13.2.0]heptadecan-17-one

$$$$ Data

M. F.

C16H28O2

Suppliers	Catalog Number
MP Biomedicals	05211146

Database	Data ID
PubChem	11345774

M. W.

252.39232

CAS

106-02-5

Similarity

N/A

ID: 109465

niobium(2+) ion disilyne

$$$$ Data

M. F.

NbSi2

Suppliers	Catalog Number
Sigma Aldrich	399493
MP Biomedicals	05211153
Alfa Aesar	13100

Database	Data ID
PubChem	0

M. W.

149.07738

CAS

12034-80-9

Similarity

N/A

ID: 109466

niobiumylidyneamine

$$$$ Data

M. F.

NNb

Suppliers	Catalog Number
MP Biomedicals	05211154

Database	Data ID
PubChem	90560

M. W.

106.91308

CAS

24621-21-4

Similarity

N/A

ID: 109467

N-[N-(4-ethylmorpholin-2-yl)carboximidoyl]cyclohexanamine

$$$$ Data

M. F.

C13H23N3O

Suppliers	Catalog Number
MP Biomedicals	05211160

Database	Data ID
PubChem	18466248

M. W.

237.34122

CAS

Similarity

N/A

ID: 109468

1-cyclohexyl-3-[2-(morpholin-4-yl)ethyl]thiourea

$$$$ Data

M. F.

C13H25N3OS

Suppliers	Catalog Number
Sigma Aldrich	C106607
MP Biomedicals	05211161
Chemik	CHO0246

Database	Data ID
PubChem	688351

M. W.

271.4221

CAS

21545-54-0

Similarity

N/A

ID: 109469

trimanganabisma-1,4-diene

$$$$ Data

M. F.

Bi2Mn3

Suppliers	Catalog Number
MP Biomedicals	05211169

Database	Data ID
PubChem	44135860

M. W.

582.774947

CAS

Similarity

N/A

ID: 109470

cyclododecane

$$$$ Data

M. F.

C12H24

Suppliers	Catalog Number
MP Biomedicals	05211172

Database	Data ID
Wikipedia	Cyclododecane
PubChem	9268

M. W.

168.31896

CAS

294-62-2

Similarity

N/A

ID: 109471

1-(methylsulfanyl)decane

$$$$ Data

M. F.

C11H24S

Suppliers	Catalog Number
MP Biomedicals	05211176
Alfa Aesar	L05473

Database	Data ID
PubChem	89712

M. W.

188.37326

CAS

22438-39-7

Similarity

N/A

ID: 109472

cycloocta-1,5-diene

$$$$ Data

M. F.

C8H12

Suppliers	Catalog Number
Sigma Aldrich	C109207 246050 29580 (more...)
MP Biomedicals	05211179
Alfa Aesar	B21196

Database	Data ID
Wikipedia	1,5-Cyclooctadiene
PubChem	82916

M. W.

108.18088

CAS

111-78-4

Similarity

N/A

ID: 109473

methylbis(prop-2-en-1-yl)amine

$$$$ Data

M. F.

C7H13N

Suppliers	Catalog Number
Sigma Aldrich	542687
MP Biomedicals	05211181

Database	Data ID
PubChem	75501

M. W.

111.18482

CAS

55553-13-4

Similarity

N/A

ID: 109474

2-hydroxyoctadecanoic acid

$$$$ Data

M. F.

C18H36O3

Suppliers	Catalog Number
Sigma Aldrich	H9631
MP Biomedicals	05211183

Database	Data ID
PubChem	69417

M. W.

300.47664

CAS

629-22-1

Similarity

N/A

ID: 109475

tetraphenylethan-1-one

$$$$ Data

M. F.

C26H20O

Suppliers	Catalog Number
Sigma Aldrich	216690
MP Biomedicals	05211184
Alfa Aesar	L01695

Database	Data ID
PubChem	68049

M. W.

348.4364

CAS

466-37-5

Similarity

N/A

ID: 109476

tetrairon(3+) ion tri(phosphonatooxy)phosphonate

$$$$ Data

M. F.

Fe4O21P6

Suppliers	Catalog Number
Sigma Aldrich	P6526
MP Biomedicals	05211191

Database	Data ID
PubChem	24877

M. W.

745.209966

CAS

10058-44-3

Similarity

N/A

ID: 109477

diiron(3+) ion triselandiide

$$$$ Data

M. F.

Fe2Se3

Suppliers	Catalog Number
MP Biomedicals	05211192

Database	Data ID
PubChem	21889645

M. W.

348.57

CAS

Similarity

N/A

ID: 109478

gallium(3+) ion ammonium tetrafluoride

$$$$ Data

M. F.

F4GaN

Suppliers	Catalog Number
MP Biomedicals	05211194

Database	Data ID
PubChem	25021698

M. W.

159.7233128

CAS

Similarity

N/A

ID: 109479

$l^{2}-lead(2+) ion bis(octadec-9-enoate)

$$$$ Data

M. F.

C36H66O4Pb

Suppliers	Catalog Number
MP Biomedicals	05211201

Database	Data ID
PubChem	71299774

M. W.

770.10684

CAS

1120-46-3

Similarity

N/A

ID: 109480

$l^{2}-lead(2+) ion oxalate

$$$$ Data

M. F.

C2O4Pb

Suppliers	Catalog Number
MP Biomedicals	05211202
Alfa Aesar	12999

Database	Data ID
Wikipedia	Lead(II)_oxalate
PubChem	61218

M. W.

295.219

CAS

814-88-0

Similarity

N/A

ID: 109481

1,3-dioxa-2-plumbacyclohept-5-ene-4,7-dione

$$$$ Data

M. F.

C4H2O4Pb

Suppliers	Catalog Number
MP Biomedicals	05211205

Database	Data ID
PubChem	16701013

M. W.

321.25628

CAS

28957-52-0

Similarity

N/A

ID: 109482

6-(butylsulfanyl)-7H-purine

$$$$ Data

M. F.

C9H12N4S

Suppliers	Catalog Number
MP Biomedicals	05211221

Database	Data ID
PubChem	78755

M. W.

208.28338

CAS

5069-82-9

Similarity

N/A

ID: 109483

5-chloro-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydr...

$$$$ Data

M. F.

C9H11ClN2O5

Suppliers	Catalog Number
Sigma Aldrich	C6891
MP Biomedicals	05211230

Database	Data ID
PubChem	65510

M. W.

262.64704

CAS

50-90-8

Similarity

N/A

ID: 109484

dichlorochromium

$$$$ Data

M. F.

Cl2Cr

Suppliers	Catalog Number
Sigma Aldrich	450782 244805
MP Biomedicals	05211235

Database	Data ID
Wikipedia	Chromium(II)_chloride
PubChem	24871

M. W.

122.9021

CAS

10049-05-5

Similarity

N/A

ID: 109485

5-butyl-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidin-4-one

$$$$ Data

M. F.

C9H14N2OS

Suppliers	Catalog Number
MP Biomedicals	05211236

Database	Data ID
PubChem	2725680

M. W.

198.28526

CAS

29113-41-5

Similarity

N/A

ID: 109486

methyl 3-[(dimethoxyphosphoryl)oxy]but-2-enoate

$$$$ Data

M. F.

C7H13O6P

Suppliers	Catalog Number
Sigma Aldrich	33767 33765 46057
MP Biomedicals	05211239

Database	Data ID
Wikipedia	Mevinphos
PubChem	5355863

M. W.

224.148281

CAS

7786-34-7

Similarity

N/A

ID: 109487

4-chloro-3-methyl-2,2-diphenylbutanenitrile

$$$$ Data

M. F.

C17H16ClN

Suppliers	Catalog Number
MP Biomedicals	05211242

Database	Data ID
PubChem	257621

M. W.

269.76864

CAS

133132-74-8

Similarity

N/A

ID: 109488

1-chloro-3,3-dimethylbutane

$$$$ Data

M. F.

C6H13Cl

Suppliers	Catalog Number
MP Biomedicals	05211255
Alfa Aesar	L11753

Database	Data ID
PubChem	76111

M. W.

120.62042

CAS

2855-08-5

Similarity

N/A

ID: 109489

benzylhydrazine; oxalic acid

$$$$ Data

M. F.

C9H12N2O4

Suppliers	Catalog Number
Sigma Aldrich	13450
MP Biomedicals	05211262

Database	Data ID
PubChem	13000183

M. W.

212.20258

CAS

32064-65-6

Similarity

N/A

ID: 109490

strontium(2+) ion diformate

$$$$ Data

M. F.

C2H2O4Sr

Suppliers	Catalog Number
MP Biomedicals	05211263

Database	Data ID
PubChem	68967

M. W.

177.65488

CAS

592-89-2

Similarity

N/A

ID: 109491

methyl(phenylmethylidene)amine

$$$$ Data More

M. F.

C8H9N

Suppliers	Catalog Number
Sigma Aldrich	B24154
MP Biomedicals	05211271
Alfa Aesar	B25161

Database	Data ID
PubChem	73954

M. W.

119.16376

CAS

622-29-7

Similarity

N/A

ID: 109492

benzyl 3-phenylprop-2-enoate

$$$$ Data More

M. F.

C16H14O2

Suppliers	Catalog Number
Sigma Aldrich	W214205 234214 96370
MP Biomedicals	05211283
Alfa Aesar	A19550

Database	Data ID
PubChem	5273469

M. W.

238.28116

CAS

103-41-3

Similarity

N/A

ID: 109493

2-(4-ethoxyphenyl)acetic acid

$$$$ Data More

M. F.

C10H12O3

Suppliers	Catalog Number
Sigma Aldrich	128112
MP Biomedicals	05211286
Alfa Aesar	A10129

Database	Data ID
PubChem	78631

M. W.

180.20048

CAS

4919-33-9

Similarity

N/A

ID: 109494

6-(propan-2-yl)quinoline

$$$$ Data

M. F.

C12H13N

Suppliers	Catalog Number
MP Biomedicals	05211290
Enamine	EN300-36283

Database	Data ID
PubChem	67285

M. W.

171.23832

CAS

135-79-5

Similarity

N/A

ID: 109495

propan-2-yl nonanoate

$$$$ Data

M. F.

C12H24O2

Suppliers	Catalog Number
MP Biomedicals	05211299

Database	Data ID
PubChem	119911

M. W.

200.31776

CAS

Similarity

N/A

ID: 109496

2-{[(2E,4E,6E,12E)-hexadeca-2,4,6,8,10,12,14-heptaene-1-sulfinyl]imino}-1$l^{5},...

$$$$ Data

M. F.

C16H19N3OS

Suppliers	Catalog Number
MP Biomedicals	05211305

Database	Data ID
PubChem	0

M. W.

301.40656

CAS

Similarity

N/A

ID: 109497

tetrabromocyclohexa-3,5-diene-1,2-dione

$$$$ Data

M. F.

C6Br4O2

Suppliers	Catalog Number
Sigma Aldrich	151475
MP Biomedicals	05211308

Database	Data ID
PubChem	75521

M. W.

423.679

CAS

2435-54-3

Similarity

N/A

ID: 109498

2-bromobut-1-ene

$$$$ Data

M. F.

C4H7Br

Suppliers	Catalog Number
MP Biomedicals	05211311
Alfa Aesar	B20067

Database	Data ID
PubChem	89990

M. W.

135.00238

CAS

23074-36-4

Similarity

N/A

ID: 109499

1-bromo-3-chloropropane

$$$$ Data More

M. F.

C3H6BrCl

Suppliers	Catalog Number
Sigma Aldrich	B9673 B62404 236446 (more...)
MP Biomedicals	05211313
Alfa Aesar	A11395

Database	Data ID
PubChem	8006

M. W.

157.43674

CAS

109-70-6

Similarity

N/A

ID: 109500

bromocyclohexane

$$$$ Data More

M. F.

C6H11Br

Suppliers	Catalog Number
Sigma Aldrich	135194 16810
MP Biomedicals	05211319
Alfa Aesar	31031 A11593

Database	Data ID
Wikipedia	Bromocyclohexane
PubChem	7960

M. W.

163.05554

CAS

108-85-0

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