Chembase list of 866358 unique molecular structures

3,7-dimethylocta-2,6-dien-1-yl butanoate

$$$$ Data

M. F.

C14H24O2

Suppliers	Catalog Number
Sigma Aldrich	W277401 W251208 W251216
MP Biomedicals	05212799
Bide Pharmatech	BD131970

Database	Data ID
PubChem	5355856

M. W.

224.33916

CAS

106-29-6

Similarity

N/A

ID: 109852

manganese(2+) ion diiodide

$$$$ Data

M. F.

I2Mn

Suppliers	Catalog Number
MP Biomedicals	05212801
Alfa Aesar	35710 32808

Database	Data ID
Wikipedia	Manganese(II)_iodide
PubChem	82250

M. W.

308.746989

CAS

7790-33-2

Similarity

N/A

ID: 109853

manganese(2+) ion bis(2-hydroxypropanoate) trihydrate

$$$$ Data

M. F.

C6H16MnO9

Suppliers	Catalog Number
MP Biomedicals	05212802

Database	Data ID
PubChem	44135619

M. W.

287.123889

CAS

51877-53-3

Similarity

N/A

ID: 109854

2-(benzylsulfanyl)acetamide

$$$$ Data

M. F.

C9H11NOS

Suppliers	Catalog Number
MP Biomedicals	05212803

Database	Data ID
PubChem	95209

M. W.

181.25474

CAS

Similarity

N/A

ID: 109855

2-hydroxyethyl 2-hydroxybenzoate

$$$$ Data

M. F.

C9H10O4

Suppliers	Catalog Number
Sigma Aldrich	172049 03830
MP Biomedicals	05212806
Bide Pharmatech	BD129722

Database	Data ID
PubChem	6880

M. W.

182.1733

CAS

87-28-5

Similarity

N/A

ID: 109856

1-(benzylsulfanyl)propan-2-one

$$$$ Data

M. F.

C10H12OS

Suppliers	Catalog Number
MP Biomedicals	05212809
Alfa Aesar	L03814

Database	Data ID
PubChem	82472

M. W.

180.26668

CAS

10230-69-0

Similarity

N/A

ID: 109857

3-(1,3,3-trihydroxypropoxy)propane-1,2-diol

$$$$ Data

M. F.

C6H14O6

Suppliers	Catalog Number
MP Biomedicals	05212810

Database	Data ID
PubChem	44135618

M. W.

182.17176

CAS

Similarity

N/A

ID: 109858

3-(dec-1-en-1-yl)oxolane-2,5-dione

$$$$ Data

M. F.

C14H22O3

Suppliers	Catalog Number
MP Biomedicals	05212811

Database	Data ID
PubChem	5354807

M. W.

238.32268

CAS

33475-53-5

Similarity

N/A

ID: 109859

dodecanedioic acid

$$$$ Data More

M. F.

C12H22O4

Suppliers	Catalog Number
Sigma Aldrich	D9630 D1009 44050
MP Biomedicals	05212812
Alfa Aesar	A10387

Database	Data ID
Wikipedia	Dodecanedioic_acid
PubChem	12736

M. W.

230.30068

CAS

142610-44-4

Similarity

N/A

ID: 109860

decan-4-one

$$$$ Data

M. F.

C10H20O

Suppliers	Catalog Number
MP Biomedicals	05212813

Database	Data ID
PubChem	12203

M. W.

156.2652

CAS

624-16-8

Similarity

N/A

ID: 109861

methyl 2,4-dihydroxybenzoate

$$$$ Data More

M. F.

C8H8O4

Suppliers	Catalog Number
Sigma Aldrich	M42505
MP Biomedicals	05212823
Alfa Aesar	B24757

Database	Data ID
PubChem	16523

M. W.

168.14672

CAS

2150-47-2

Similarity

N/A

ID: 109862

dodecanedinitrile

$$$$ Data

M. F.

C12H20N2

Suppliers	Catalog Number
MP Biomedicals	05212826
Alfa Aesar	L03451

Database	Data ID
PubChem	78301

M. W.

192.3006

CAS

4543-66-2

Similarity

N/A

ID: 109863

niobium

$$$$ Data

M. F.

Suppliers	Catalog Number
Sigma Aldrich	262749 262757 268488 (more...)
MP Biomedicals	05212829
Alfa Aesar	40916 35365 14396 (more...)

Database	Data ID
PubChem	23936

M. W.

92.90638

CAS

7440-03-1

Similarity

N/A

ID: 109864

hexadecachloro-9,18,27,36,37,39,40,41-octaaza-38-cupradecacyclo[17.17.3.1^{10,17...

$$$$ Data

M. F.

C32Cl16CuN8

Suppliers	Catalog Number
MP Biomedicals	05212831

Database	Data ID
PubChem	26932

M. W.

1127.19

CAS

14832-14-5

Similarity

N/A

ID: 109865

7,8-dihydroxy-4-methyl-2H-chromen-2-one

$$$$ Data

M. F.

C10H8O4

Suppliers	Catalog Number
Sigma Aldrich	630748
MP Biomedicals	05212833
InterBioScreen	BB_NC-1804 STOCK1N-06819

Database	Data ID
PubChem	5355836

M. W.

192.16812

CAS

2107-77-9

Similarity

N/A

ID: 109866

tricopper(2+) ion bis(hexacyanoirontriuide)

$$$$ Data

M. F.

C12Cu3Fe2N12

Suppliers	Catalog Number
MP Biomedicals	05212834

Database	Data ID
PubChem	25113328

M. W.

614.5368

CAS

14840-55-2

Similarity

N/A

ID: 109867

copper(2+) ion diiodate

$$$$ Data

M. F.

CuI2O6

Suppliers	Catalog Number
MP Biomedicals	05212835
Alfa Aesar	89459

Database	Data ID
PubChem	9801829

M. W.

413.35134

CAS

13454-89-2

Similarity

N/A

ID: 109868

copper(2+) ion dihydrate difluoride

$$$$ Data

M. F.

CuF2O2

Suppliers	Catalog Number
MP Biomedicals	05212836
Alfa Aesar	13076

Database	Data ID
PubChem	24884278

M. W.

133.5416064

CAS

13454-88-1

Similarity

N/A

ID: 109869

copper(2+) ion hexafluorosilanediuide

$$$$ Data

M. F.

CuF6Si

Suppliers	Catalog Number
MP Biomedicals	05212837

Database	Data ID
PubChem	9837145

M. W.

205.6219192

CAS

12062-24-7

Similarity

N/A

ID: 109870

copper(2+) ion diformate hydrate

$$$$ Data

M. F.

C2H4CuO5

Suppliers	Catalog Number
MP Biomedicals	05212838
Alfa Aesar	A18569

Database	Data ID
PubChem	25021465

M. W.

171.59616

CAS

544-19-4

Similarity

N/A

ID: 109871

3-(benzylsulfanyl)propanenitrile

$$$$ Data

M. F.

C10H11NS

Suppliers	Catalog Number
MP Biomedicals	05212839

Database	Data ID
PubChem	220027

M. W.

177.26604

CAS

5601-23-0

Similarity

N/A

ID: 109872

copper(2+) ion dioxidanide

$$$$ Data

M. F.

CuO2

Suppliers	Catalog Number
MP Biomedicals	05212840
Alfa Aesar	32733

Database	Data ID
Wikipedia	Copper(II)_hydroxide
PubChem	164826

M. W.

95.5448

CAS

20427-59-2

Similarity

N/A

ID: 109873

sodium 4-{[4-(ethylamino)-3-methylphenyl][4-(ethylimino)-3-methylcyclohexa-2,5-d...

$$$$ Data

M. F.

C25H27N2NaO6S2

Suppliers	Catalog Number
MP Biomedicals	05212841

Database	Data ID
PubChem	43833365

M. W.

538.61145

CAS

2650-17-1

Similarity

N/A

ID: 109874

2-hydroxy-2,2-diphenylacetamide

$$$$ Data

M. F.

C14H13NO2

Suppliers	Catalog Number
Sigma Aldrich	280305
MP Biomedicals	05212848

Database	Data ID
PubChem	78483

M. W.

227.25852

CAS

4746-87-6

Similarity

N/A

ID: 109875

2-{2-[(2-chloroacetyl)oxy]ethanesulfonyl}ethyl 2-chloroacetate

$$$$ Data

M. F.

C8H12Cl2O6S

Suppliers	Catalog Number
MP Biomedicals	05212852

Database	Data ID
PubChem	25113253

M. W.

307.14828

CAS

Similarity

N/A

ID: 109876

1,2,3,4,5,6-hexabromocyclohexane

$$$$ Data

M. F.

C6H6Br6

Suppliers	Catalog Number
MP Biomedicals	05212857

Database	Data ID
PubChem	74603

M. W.

557.53584

CAS

1837-91-8

Similarity

N/A

ID: 109877

2,5-dimethylhexan-3-ol

$$$$ Data

M. F.

C8H18O

Suppliers	Catalog Number
MP Biomedicals	05212865
Alfa Aesar	B20578

Database	Data ID
PubChem	89183

M. W.

130.22792

CAS

19550-07-3

Similarity

N/A

ID: 109878

3,5-dimethylhex-1-yn-3-ol

$$$$ Data

M. F.

C8H14O

Suppliers	Catalog Number
Sigma Aldrich	278394
MP Biomedicals	05212866
InterBioScreen	BB_SC-5533

Database	Data ID
PubChem	61018

M. W.

126.19616

CAS

107-54-0

Similarity

N/A

ID: 109879

5-(propan-2-ylidene)cyclopenta-1,3-diene

$$$$ Data

M. F.

C8H10

Suppliers	Catalog Number
Sigma Aldrich	40288 646369
MP Biomedicals	05212874
Bide Pharmatech	BD233924

Database	Data ID
PubChem	137467

M. W.

106.165

CAS

2175-91-9

Similarity

N/A

ID: 109880

1,4-dimethylnaphthalene

$$$$ Data

M. F.

C12H12

Suppliers	Catalog Number
Sigma Aldrich	D170305 37883
MP Biomedicals	05212876

Database	Data ID
PubChem	11304

M. W.

156.22368

CAS

571-58-4

Similarity

N/A

ID: 109881

4-phenylphenyl acetate

$$$$ Data

M. F.

C14H12O2

Suppliers	Catalog Number
Sigma Aldrich	411965
MP Biomedicals	05212878
Alfa Aesar	A12166

Database	Data ID
PubChem	346066

M. W.

212.24388

CAS

148-86-7

Similarity

N/A

ID: 109882

3,6-dimethyloctane-3,6-diol

$$$$ Data

M. F.

C10H22O2

Suppliers	Catalog Number
MP Biomedicals	05212881
Alfa Aesar	B20738

Database	Data ID
PubChem	95379

M. W.

174.28048

CAS

78-65-9

Similarity

N/A

ID: 109883

3,4-dimethyl-1-(2-phenylethyl)pyridin-1-ium bromide

$$$$ Data

M. F.

C15H18BrN

Suppliers	Catalog Number
MP Biomedicals	05212884

Database	Data ID
PubChem	21144203

M. W.

292.21412

CAS

102-64-7

Similarity

N/A

ID: 109884

N,N-dimethylbenzamide

$$$$ Data

M. F.

C9H11NO

Suppliers	Catalog Number
Sigma Aldrich	276170
MP Biomedicals	05212894
Alfa Aesar	A18766

Database	Data ID
PubChem	11916

M. W.

149.18974

CAS

611-74-5

Similarity

N/A

ID: 109885

3,6-dimethyloct-4-yne-3,6-diol

$$$$ Data

M. F.

C10H18O2

Suppliers	Catalog Number
Sigma Aldrich	278408
MP Biomedicals	05212896
Alfa Aesar	B22491

Database	Data ID
PubChem	6546

M. W.

170.24872

CAS

78-66-0

Similarity

N/A

ID: 109886

2,4-dimethylphenol

$$$$ Data More

M. F.

C8H10O

Suppliers	Catalog Number
Sigma Aldrich	W506206 D174203 383740 (more...)
MP Biomedicals	05212897
Alfa Aesar	A11966

Database	Data ID
PubChem	7771

M. W.

122.1644

CAS

105-67-9

Similarity

N/A

ID: 109887

(dimethylcarbamothioyl)sulfanide; dimethylazanium

$$$$ Data

M. F.

C5H14N2S2

Suppliers	Catalog Number
MP Biomedicals	05212900

Database	Data ID
PubChem	11728

M. W.

166.30806

CAS

598-64-1

Similarity

N/A

ID: 109888

4-chlorophenyl N,N-dimethylcarbamate

$$$$ Data

M. F.

C9H10ClNO2

Suppliers	Catalog Number
MP Biomedicals	05212901

Database	Data ID
PubChem	350036

M. W.

199.6342

CAS

7305-03-5

Similarity

N/A

ID: 109889

tetraethoxygermane

$$$$ Data

M. F.

C8H20GeO4

Suppliers	Catalog Number
Sigma Aldrich	339180 48845
MP Biomedicals	05212902
Alfa Aesar	14679 43052

Database	Data ID
PubChem	16684444

M. W.

252.882

CAS

14165-55-0

Similarity

N/A

ID: 109890

4,7-dimethyldec-5-yne-4,7-diol

$$$$ Data

M. F.

C12H22O2

Suppliers	Catalog Number
MP Biomedicals	05212903
Alfa Aesar	B20559

Database	Data ID
PubChem	135969

M. W.

198.30188

CAS

126-87-4

Similarity

N/A

ID: 109891

1-nitro-3-(3-nitrobenzenesulfonyl)benzene

$$$$ Data

M. F.

C12H8N2O6S

Suppliers	Catalog Number
MP Biomedicals	05212911

Database	Data ID
PubChem	71050

M. W.

308.26672

CAS

1228-53-1

Similarity

N/A

ID: 109892

ethyl 2,5-dimethylbenzoate

$$$$ Data

M. F.

C11H14O2

Suppliers	Catalog Number
MP Biomedicals	05212913

Database	Data ID
PubChem	14325396

M. W.

178.22766

CAS

Similarity

N/A

ID: 109893

{[2-(phenylsulfanyl)ethyl]sulfanyl}benzene

$$$$ Data

M. F.

C14H14S2

Suppliers	Catalog Number
MP Biomedicals	05212915
Alfa Aesar	L02019

Database	Data ID
PubChem	69317

M. W.

246.39096

CAS

622-20-8

Similarity

N/A

ID: 109894

[4-(dimethyltriaz-1-en-1-yl)phenyl]arsonic acid hydrochloride

$$$$ Data

M. F.

C8H13AsClN3O3

Suppliers	Catalog Number
MP Biomedicals	05212918

Database	Data ID
PubChem	44135830

M. W.

309.58172

CAS

Similarity

N/A

ID: 109895

2,6-dimethylcyclohexa-2,5-diene-1,4-dione

$$$$ Data

M. F.

C8H8O2

Suppliers	Catalog Number
Sigma Aldrich	D149705
MP Biomedicals	05212919
Alfa Aesar	A11342

Database	Data ID
PubChem	68241

M. W.

136.14792

CAS

527-61-7

Similarity

N/A

ID: 109896

butyl 3-phenylprop-2-enoate

$$$$ Data

M. F.

C13H16O2

Suppliers	Catalog Number
MP Biomedicals	05212934
Alfa Aesar	L07362

Database	Data ID
PubChem	5273465

M. W.

204.26494

CAS

538-65-8

Similarity

N/A

ID: 109897

3-(diethylamino)phenol

$$$$ Data

M. F.

C10H15NO

Suppliers	Catalog Number
Sigma Aldrich	102091 31880
MP Biomedicals	05212935

Database	Data ID
PubChem	7062

M. W.

165.2322

CAS

91-68-9

Similarity

N/A

ID: 109898

1,3-diethyl 2-acetylpropanedioate

$$$$ Data More

M. F.

C9H14O5

Suppliers	Catalog Number
MP Biomedicals	05212936
Alfa Aesar	L12482
Bide Pharmatech	BD7022

Database	Data ID
PubChem	136365

M. W.

202.20446

CAS

105-50-0

Similarity

N/A

ID: 109899

4-(diethylamino)benzonitrile

$$$$ Data

M. F.

C11H14N2

Suppliers	Catalog Number
MP Biomedicals	05212942
Alfa Aesar	L01905

Database	Data ID
PubChem	76134

M. W.

174.24226

CAS

2873-90-7

Similarity

N/A

ID: 109900

3,7-dimethyloct-6-en-1-yl 2-methylpropanoate

$$$$ Data

M. F.

C14H26O2

Suppliers	Catalog Number
Sigma Aldrich	W231304
MP Biomedicals	05212946

Database	Data ID
PubChem	60985

M. W.

226.35504

CAS

97-89-2

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