Chembase list of 866358 unique molecular structures

$$$$ Data

M. F.

C8H6BrN3

Suppliers	Catalog Number
Bide Pharmatech	BD227740

Database	Data ID
PubChem	23727075

M. W.

224.05734

CAS

959558-28-2

Similarity

N/A

ID: 294502

6-(methoxymethyl)pyridine-2-carbaldehyde

$$$$ Data

M. F.

C8H9NO2

Suppliers	Catalog Number
Bide Pharmatech	BD228065

Database	Data ID
PubChem	28950164

M. W.

151.16256

CAS

890904-66-2

Similarity

N/A

ID: 294503

2,6-dichloro-3-methoxybenzoic acid

$$$$ Data

M. F.

C8H6Cl2O3

Suppliers	Catalog Number
Bide Pharmatech	BD228242

Database	Data ID
PubChem	21506451

M. W.

221.03744

CAS

32890-93-0

Similarity

N/A

ID: 294504

N-{2-[4-(4-cyanophenyl)phenyl]propyl}propane-2-sulfonamide

$$$$ Data

M. F.

C19H22N2O2S

Suppliers	Catalog Number
Bide Pharmatech	BD244385

Database	Data ID
PubChem	9928016

M. W.

342.45518

CAS

211311-95-4

Similarity

N/A

ID: 294505

ethyl (1S,3aR,6aS)-octahydrocyclopenta[c]pyrrole-1-carboxylate hydrochloride

$$$$ Data

M. F.

C10H18ClNO2

Suppliers	Catalog Number
Bide Pharmatech	BD264344

Database	Data ID
PubChem	72183111

M. W.

219.70842

CAS

1147103-42-1

Similarity

N/A

ID: 294506

6-nitroheptan-3-one

$$$$ Data

M. F.

C7H13NO3

Suppliers	Catalog Number
Bide Pharmatech	BD264426

Database	Data ID
PubChem	13184729

M. W.

159.18302

CAS

83188-08-3

Similarity

N/A

ID: 294507

3,4-dimethylthiophene

$$$$ Data

M. F.

C6H8S

Suppliers	Catalog Number
Bide Pharmatech	BD82166

Database	Data ID
PubChem	79089

M. W.

112.19272

CAS

632-15-5

Similarity

N/A

ID: 294508

ethyl 2-hydroxy-6-methylbenzoate

$$$$ Data

M. F.

C10H12O3

Suppliers	Catalog Number
Bide Pharmatech	BD0168

Database	Data ID
PubChem	584222

M. W.

180.20048

CAS

6555-40-4

Similarity

N/A

ID: 294509

2-bromo-4-nitro-1-(trifluoromethoxy)benzene

$$$$ Data

M. F.

C7H3BrF3NO3

Suppliers	Catalog Number
Alfa Aesar	H26173
Bide Pharmatech	BD10148
A&J Pharmtech	AJA-O2991

Database	Data ID
PubChem	24721641

M. W.

286.0028296

CAS

200958-40-3

Similarity

N/A

ID: 294510

6-iodo-1H-pyrrolo[2,3-b]pyridine

$$$$ Data

M. F.

C7H5IN2

Suppliers	Catalog Number
Bide Pharmatech	BD109374

Database	Data ID
PubChem	10705419

M. W.

244.03247

CAS

189882-32-4

Similarity

N/A

ID: 294511

6-methyl-1,2,3,4-tetrahydronaphthalene

$$$$ Data

M. F.

C11H14

Suppliers	Catalog Number
Bide Pharmatech	BD109784

Database	Data ID
PubChem	15514

M. W.

146.22886

CAS

1680-51-9

Similarity

N/A

ID: 294512

methyl (2R)-2-acetamidopropanoate

$$$$ Data

M. F.

C6H11NO3

Suppliers	Catalog Number
Bide Pharmatech	BD111976

Database	Data ID
PubChem	6951031

M. W.

145.15644

CAS

19914-36-4

Similarity

N/A

ID: 294513

(2Z)-2-(phenylmethylidene)heptan-1-ol

$$$$ Data

M. F.

C14H20O

Suppliers	Catalog Number
Bide Pharmatech	BD113344

Database	Data ID
PubChem	6076971

M. W.

204.308

CAS

101-85-9

Similarity

N/A

ID: 294514

4-aminobenzene-1,3-disulfonic acid

$$$$ Data

M. F.

C6H7NO6S2

Suppliers	Catalog Number
Bide Pharmatech	BD114379

Database	Data ID
PubChem	67304

M. W.

253.25288

CAS

137-51-9

Similarity

N/A

ID: 294515

5-(chloromethyl)-1,3-oxazole

$$$$ Data

M. F.

C4H4ClNO

Suppliers	Catalog Number
Bide Pharmatech	BD146461
A&J Pharmtech	AJA-O25763

Database	Data ID
PubChem	15290880

M. W.

117.53366

CAS

172649-57-9

Similarity

N/A

ID: 294516

(2S)-2-carboxy-1,1-dimethylpyrrolidin-1-ium chloride

$$$$ Data

M. F.

C7H14ClNO2

Suppliers	Catalog Number
Bide Pharmatech	BD151874

Database	Data ID
PubChem	44150282

M. W.

179.64456

CAS

4136-37-2

Similarity

N/A

ID: 294517

5-oxa-2-azaspiro[3.5]nonane; oxalic acid

$$$$ Data

M. F.

C9H15NO5

Suppliers	Catalog Number
Bide Pharmatech	BD224696

Database	Data ID
PubChem	71303814

M. W.

217.2191

CAS

1427359-47-4

Similarity

N/A

ID: 294518

2-amino-4,5-dihydro-1,3-oxazol-4-one

$$$$ Data

M. F.

C3H4N2O2

Suppliers	Catalog Number
Bide Pharmatech	BD225728
A&J Pharmtech	AJA-O12862 AJA-O12192

Database	Data ID
PubChem	437570

M. W.

100.07606

CAS

17816-85-2

Similarity

N/A

ID: 294519

2-(4-chloro-3-methoxyphenyl)acetonitrile

$$$$ Data

M. F.

C9H8ClNO

Suppliers	Catalog Number
Bide Pharmatech	BD227707

Database	Data ID
PubChem	20460956

M. W.

181.61892

CAS

13726-21-1

Similarity

N/A

ID: 294520

4-[4-(propan-2-yloxy)benzenesulfonyl]phenol

$$$$ Data

M. F.

C15H16O4S

Suppliers	Catalog Number
Bide Pharmatech	BD23238

Database	Data ID
PubChem	9904141

M. W.

292.35014

CAS

95235-30-6

Similarity

N/A

ID: 294521

1,5-dichloroisoquinoline

$$$$ Data

M. F.

C9H5Cl2N

Suppliers	Catalog Number
Bide Pharmatech	BD233381
A&J Pharmtech	AJA-O19297

Database	Data ID
PubChem	298623

M. W.

198.0487

CAS

70810-23-0

Similarity

N/A

ID: 294522

6-bromo-2,3-dichloroquinoxaline

$$$$ Data

M. F.

C8H3BrCl2N2

Suppliers	Catalog Number
Bide Pharmatech	BD233546

Database	Data ID
PubChem	13799585

M. W.

277.93282

CAS

108229-82-9

Similarity

N/A

ID: 294523

(2R,6R)-2,6-dimethylmorpholine

$$$$ Data

M. F.

C6H13NO

Suppliers	Catalog Number
Bide Pharmatech	BD233788 BD208857

Database	Data ID
PubChem	11137133

M. W.

115.17352

CAS

171753-74-5

Similarity

N/A

ID: 294524

3,5-dichloropyrazine-2-carboxamide

$$$$ Data

M. F.

C5H3Cl2N3O

Suppliers	Catalog Number
Bide Pharmatech	BD247742
A&J Pharmtech	AJA-O21558 AJA-O12497

Database	Data ID
PubChem	22665521

M. W.

192.00282

CAS

312736-50-8

Similarity

N/A

ID: 294525

2,3-dichloro-6-(trifluoromethoxy)quinoxaline

$$$$ Data

M. F.

C9H3Cl2F3N2O

Suppliers	Catalog Number
Bide Pharmatech	BD248706

Database	Data ID
PubChem	59320620

M. W.

283.0341296

CAS

1253522-03-0

Similarity

N/A

ID: 294526

5,6-dimethyl-1,3-benzothiazole-2-thiol

$$$$ Data

M. F.

C9H9NS2

Suppliers	Catalog Number
Bide Pharmatech	BD248890

Database	Data ID
PubChem	21029261

M. W.

195.30446

CAS

80087-70-3

Similarity

N/A

ID: 294527

5-bromo-2-ethylpyrimidine-4-carboxylic acid

$$$$ Data

M. F.

C7H7BrN2O2

Suppliers	Catalog Number
Bide Pharmatech	BD249227

Database	Data ID
PubChem	66977702

M. W.

231.04668

CAS

1235450-86-8

Similarity

N/A

ID: 294528

(2S)-2-aminohex-4-ynoic acid

$$$$ Data

M. F.

C6H9NO2

Suppliers	Catalog Number
Bide Pharmatech	BD251604

Database	Data ID
PubChem	10654237

M. W.

127.14116

CAS

29834-76-2

Similarity

N/A

ID: 294529

3-bromo-4-(2,2-dimethylpropanamido)benzoic acid

$$$$ Data

M. F.

C12H14BrNO3

Suppliers	Catalog Number
Bide Pharmatech	BD255488

Database	Data ID
PubChem	15720409

M. W.

300.14846

CAS

139058-18-7

Similarity

N/A

ID: 294530

3-bromo-5-methanesulfonylaniline

$$$$ Data

M. F.

C7H8BrNO2S

Suppliers	Catalog Number
Bide Pharmatech	BD237328

Database	Data ID
PubChem	68424184

M. W.

250.11292

CAS

62606-00-2

Similarity

N/A

ID: 294531

3-bromo-2-methyl-6-(trifluoromethyl)pyridine

$$$$ Data

M. F.

C7H5BrF3N

Suppliers	Catalog Number
Bide Pharmatech	BD237466

Database	Data ID
PubChem	70700828

M. W.

240.0205096

CAS

1010422-53-3

Similarity

N/A

ID: 294532

1-(2,2,2-trifluoroethyl)piperazine dihydrochloride

$$$$ Data

M. F.

C6H13Cl2F3N2

Suppliers	Catalog Number
Bide Pharmatech	BD239326

Database	Data ID
PubChem	16312067

M. W.

241.0820296

CAS

13349-91-2

Similarity

N/A

ID: 294533

5-(piperazin-1-yl)pyrimidine hydrochloride

$$$$ Data

M. F.

C8H13ClN4

Suppliers	Catalog Number
Bide Pharmatech	BD240891

Database	Data ID
PubChem	69201469

M. W.

200.66862

CAS

634468-92-1

Similarity

N/A

ID: 294534

4-[2-(methoxycarbonyl)cyclopropyl]benzoic acid

$$$$ Data

M. F.

C12H12O4

Suppliers	Catalog Number
Bide Pharmatech	BD244328

Database	Data ID
PubChem	59205706

M. W.

220.22128

CAS

1057107-39-7

Similarity

N/A

ID: 294535

(2S)-1-[(tert-butoxy)carbonyl]-5-oxopiperazine-2-carboxylic acid

$$$$ Data

M. F.

C10H16N2O5

Suppliers	Catalog Number
Bide Pharmatech	BD245027

Database	Data ID
PubChem	44520132

M. W.

244.24444

CAS

1033713-11-9

Similarity

N/A

ID: 294536

4-amino-1H-indole-6-carbonitrile

$$$$ Data

M. F.

C9H7N3

Suppliers	Catalog Number
Bide Pharmatech	BD245123

Database	Data ID
PubChem	24728046

M. W.

157.17198

CAS

885518-39-8

Similarity

N/A

ID: 294537

(3aR,5S,6aS)-2-[(tert-butoxy)carbonyl]-octahydrocyclopenta[c]pyrrole-5-carboxyli...

$$$$ Data

M. F.

C13H21NO4

Suppliers	Catalog Number
Bide Pharmatech	BD245270

Database	Data ID
PubChem	25324785

M. W.

255.31014

CAS

442877-23-8

Similarity

N/A

ID: 294538

3-amino-5-chloropyridine-2-carboxylic acid

$$$$ Data

M. F.

C6H5ClN2O2

Suppliers	Catalog Number
Bide Pharmatech	BD245446
A&J Pharmtech	AJA-O21506

Database	Data ID
PubChem	18980353

M. W.

172.5691

CAS

53636-68-3

Similarity

N/A

ID: 294539

9,9-bis(methoxymethyl)-9H-fluorene

$$$$ Data

M. F.

C17H18O2

Suppliers	Catalog Number
Bide Pharmatech	BD247092

Database	Data ID
PubChem	11054211

M. W.

254.32362

CAS

182121-12-6

Similarity

N/A

ID: 294540

6-(hydroxymethyl)pyridine-3-carboxylic acid

$$$$ Data

M. F.

C7H7NO3

Suppliers	Catalog Number
Bide Pharmatech	BD247704

Database	Data ID
PubChem	14722130

M. W.

153.13538

CAS

775545-30-7

Similarity

N/A

ID: 294541

2-{2-ethoxy-5-[(4-ethylpiperazin-1-yl)sulfonyl]phenyl}-5-methyl-7-propyl-1H,4H-i...

$$$$ Data

M. F.

C23H39ClN6O7S

Suppliers	Catalog Number
Bide Pharmatech	BD156358

Database	Data ID
PubChem	6918463

M. W.

579.10976

CAS

330808-88-3

Similarity

N/A

ID: 294542

3-bromo-1H-indazole-7-carbonitrile

$$$$ Data

M. F.

C8H4BrN3

Suppliers	Catalog Number
Bide Pharmatech	BD158454

Database	Data ID
PubChem	44585510

M. W.

222.04146

CAS

945762-00-5

Similarity

N/A

ID: 294543

6-bromo-5-methoxypyridin-3-amine

$$$$ Data

M. F.

C6H7BrN2O

Suppliers	Catalog Number
Bide Pharmatech	BD159323

Database	Data ID
PubChem	70700354

M. W.

203.03658

CAS

1020253-85-3

Similarity

N/A

ID: 294544

2-[(2R)-4-[(tert-butoxy)carbonyl]morpholin-2-yl]acetic acid

$$$$ Data

M. F.

C11H19NO5

Suppliers	Catalog Number
Bide Pharmatech	BD159962

Database	Data ID
PubChem	40425168

M. W.

245.27226

CAS

1257848-48-8

Similarity

N/A

ID: 294545

2-[(2S)-4-[(tert-butoxy)carbonyl]morpholin-2-yl]acetic acid

$$$$ Data

M. F.

C11H19NO5

Suppliers	Catalog Number
Bide Pharmatech	BD159963

Database	Data ID
PubChem	27281752

M. W.

245.27226

CAS

1257850-82-0

Similarity

N/A

ID: 294546

4-fluoropyridine-2-carbaldehyde

$$$$ Data

M. F.

C6H4FNO

Suppliers	Catalog Number
Bide Pharmatech	BD160399
A&J Pharmtech	AJA-O37409

Database	Data ID
PubChem	46315157

M. W.

125.1004632

CAS

1060809-18-8

Similarity

N/A

ID: 294547

(1R,2R,5S,7R,8R)-2,6,6,8-tetramethyltricyclo[5.3.1.0¹,⁵]un...

$$$$ Data

M. F.

C15H26O

Suppliers	Catalog Number
Bide Pharmatech	BD16180

Database	Data ID
PubChem	12302603

M. W.

222.36634

CAS

77-53-2

Similarity

N/A

ID: 294548

4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine hydrochloride

$$$$ Data

M. F.

C11H21BClNO2

Suppliers	Catalog Number
Bide Pharmatech	BD164528

Database	Data ID
PubChem	49761084

M. W.

245.55394

CAS

1121057-75-7

Similarity

N/A

ID: 294549

4-formyl-3-nitrobenzonitrile

$$$$ Data

M. F.

C8H4N2O3

Suppliers	Catalog Number
Bide Pharmatech	BD165372
A&J Pharmtech	AJA-O20257

Database	Data ID
PubChem	13238550

M. W.

176.12896

CAS

90178-78-2

Similarity

N/A

ID: 294550

6-bromo-2-(4-chlorophenyl)-3-methylquinoline-4-carboxylic acid

$$$$ Data

M. F.

C17H11BrClNO2

Suppliers	Catalog Number
Bide Pharmatech	BD16539

Database	Data ID
PubChem	994000

M. W.

376.63174

CAS

438531-53-4

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