Chembase list of 866358 unique molecular structures

ID: 252001

2,2,2-trifluoroethyl N-(pyridin-3-ylmethyl)carbamate

$$$$ Data

M. F.

C9H9F3N2O2

Suppliers	Catalog Number
Enamine	EN300-23881

Database	Data ID
PubChem	9106575

M. W.

234.1751696

CAS

Similarity

N/A

ID: 252002

2-(1-chloroethyl)-5-(furan-2-yl)-3H,4H-thieno[2,3-d]pyrimidin-4-one

$$$$ Data

M. F.

C12H9ClN2O2S

Suppliers	Catalog Number
Enamine	EN300-23882

Database	Data ID
PubChem	16227068

M. W.

280.73006

CAS

Similarity

N/A

ID: 252003

2-(chloromethyl)quinazolin-4-amine

$$$$ Data

M. F.

C9H8ClN3

Suppliers	Catalog Number
Enamine	EN300-23883

Database	Data ID
PubChem	8934577

M. W.

193.63292

CAS

Similarity

N/A

ID: 252004

2,2,2-trifluoroethyl N-(pyridin-2-ylmethyl)carbamate

$$$$ Data

M. F.

C9H9F3N2O2

Suppliers	Catalog Number
Enamine	EN300-23885

Database	Data ID
PubChem	9106571

M. W.

234.1751696

CAS

Similarity

N/A

ID: 252005

5-(methylsulfanyl)-2-nitrobenzoic acid

$$$$ Data

M. F.

C8H7NO4S

Suppliers	Catalog Number
Enamine	EN300-23886

Database	Data ID
PubChem	8934576

M. W.

213.21048

CAS

68701-32-6

Similarity

N/A

ID: 252006

octahydroimidazolidino[1,5-a]pyridine-1,3-dione

$$$$ Data

M. F.

C7H10N2O2

Suppliers	Catalog Number
Enamine	EN300-23887

Database	Data ID
PubChem	10654438

M. W.

154.1665

CAS

4705-52-6

Similarity

N/A

ID: 252007

2-[5-(furan-2-yl)-2-oxo-2,3-dihydro-1,3,4-oxadiazol-3-yl]acetic acid

$$$$ Data

M. F.

C8H6N2O5

Suppliers	Catalog Number
Enamine	EN300-23892

Database	Data ID
PubChem	9106521

M. W.

210.14364

CAS

Similarity

N/A

ID: 252008

2-(4-methoxyphenyl)-3-nitro-2H-chromene

$$$$ Data

M. F.

C16H13NO4

Suppliers	Catalog Number
Enamine	EN300-23893

Database	Data ID
PubChem	2732134

M. W.

283.27872

CAS

57544-02-2

Similarity

N/A

ID: 252009

1-[(3-methyl-1,2-oxazol-5-yl)methyl]piperazine hydrochloride

$$$$ Data

M. F.

C9H16ClN3O

Suppliers	Catalog Number
Enamine	EN300-23895

Database	Data ID
PubChem	16289195

M. W.

217.69584

CAS

Similarity

N/A

ID: 252010

5-(ethoxymethyl)furan-2-carboxylic acid

$$$$ Data

M. F.

C8H10O4

Suppliers	Catalog Number
Enamine	EN300-23897

Database	Data ID
PubChem	4682007

M. W.

170.1626

CAS

Similarity

N/A

ID: 252011

7-nitro-3-(pyrrolidin-1-yl)-1,2-dihydroquinoxalin-2-one

$$$$ Data

M. F.

C12H12N4O3

Suppliers	Catalog Number
Enamine	EN300-23898

Database	Data ID
PubChem	16227069

M. W.

260.24868

CAS

Similarity

N/A

ID: 252012

1-(2-cyanophenyl)-N-methylmethanesulfonamide

$$$$ Data

M. F.

C9H10N2O2S

Suppliers	Catalog Number
Enamine	EN300-23900

Database	Data ID
PubChem	9106555

M. W.

210.2529

CAS

51045-35-3

Similarity

N/A

ID: 252013

6-amino-7-fluoro-3,4-dihydroquinazolin-4-one

$$$$ Data

M. F.

C8H6FN3O

Suppliers	Catalog Number
Enamine	EN300-23901

Database	Data ID
PubChem	9070846

M. W.

179.1511432

CAS

Similarity

N/A

ID: 252014

2-(4-hydroxyphenyl)-2-(4-methylpiperazin-1-yl)acetonitrile

$$$$ Data

M. F.

C13H17N3O

Suppliers	Catalog Number
Enamine	EN300-23902

Database	Data ID
PubChem	16227070

M. W.

231.29358

CAS

Similarity

N/A

ID: 252015

methyl 5-(hydroxymethyl)-2-methylfuran-3-carboxylate

$$$$ Data

M. F.

C8H10O4

Suppliers	Catalog Number
Enamine	EN300-23903

Database	Data ID
PubChem	9106567

M. W.

170.1626

CAS

15341-69-2

Similarity

N/A

ID: 252016

1-(1,3-benzothiazol-2-yl)-3-(methylsulfanyl)propan-1-amine hydrochloride

$$$$ Data

M. F.

C11H15ClN2S2

Suppliers	Catalog Number
Enamine	EN300-23904

Database	Data ID
PubChem	16286961

M. W.

274.8332

CAS

Similarity

N/A

ID: 252017

6-(chloromethyl)-2-N,2-N-dimethyl-1,3,5-triazine-2,4-diamine

$$$$ Data

M. F.

C6H10ClN5

Suppliers	Catalog Number
Enamine	EN300-23905

Database	Data ID
PubChem	389996

M. W.

187.6301

CAS

21320-37-6

Similarity

N/A

ID: 252018

3-[5-(4-methylphenyl)-4-oxo-3H,4H-thieno[2,3-d]pyrimidin-3-yl]propanoic acid

$$$$ Data

M. F.

C16H14N2O3S

Suppliers	Catalog Number
Enamine	EN300-23906

Database	Data ID
PubChem	9106535

M. W.

314.35896

CAS

Similarity

N/A

ID: 252019

2-chloro-N-(4-hydroxyphenyl)acetamide

$$$$ Data

M. F.

C8H8ClNO2

Suppliers	Catalog Number
Enamine	EN300-23910

Database	Data ID
PubChem	236323

M. W.

185.60762

CAS

2153-11-9

Similarity

N/A

ID: 252020

6-(1-chloroethyl)-2-N,2-N-dimethyl-1,3,5-triazine-2,4-diamine

$$$$ Data

M. F.

C7H12ClN5

Suppliers	Catalog Number
Enamine	EN300-23911

Database	Data ID
PubChem	16227072

M. W.

201.65668

CAS

98336-32-4

Similarity

N/A

ID: 252021

6-(1-chloroethyl)-2-N-phenyl-1,3,5-triazine-2,4-diamine

$$$$ Data

M. F.

C11H12ClN5

Suppliers	Catalog Number
Enamine	EN300-23912

Database	Data ID
PubChem	16227073

M. W.

249.69948

CAS

99860-35-2

Similarity

N/A

ID: 252022

3-methyl-3-(propan-2-yl)oxolane-2,5-dione

$$$$ Data

M. F.

C8H12O3

Suppliers	Catalog Number
Enamine	EN300-23915

Database	Data ID
PubChem	16227074

M. W.

156.17908

CAS

Similarity

N/A

ID: 252023

3-amino-3H,4H-thieno[2,3-d]pyrimidin-4-one

$$$$ Data

M. F.

C6H5N3OS

Suppliers	Catalog Number
Enamine	EN300-23917

Database	Data ID
PubChem	9106516

M. W.

167.1884

CAS

Similarity

N/A

ID: 252024

8,11-dithia-4,6-diazatricyclo[7.4.0.0²,⁷]trideca-1(9),2(7)...

$$$$ Data

M. F.

C9H8N2OS2

Suppliers	Catalog Number
Enamine	EN300-23918

Database	Data ID
PubChem	9070841

M. W.

224.30262

CAS

Similarity

N/A

ID: 252025

4-ethoxybenzene-1-thiol

$$$$ Data

M. F.

C8H10OS

Suppliers	Catalog Number
Enamine	EN300-23919

Database	Data ID
PubChem	9106508

M. W.

154.2294

CAS

699-09-2

Similarity

N/A

ID: 252026

5-(chloromethyl)-8-thia-4,6-diazatricyclo[7.4.0.0²,⁷]tride...

$$$$ Data

M. F.

C11H12ClN3S

Suppliers	Catalog Number
ChemBridge	5107403
Enamine	EN300-23921

Database	Data ID
PubChem	2063477

M. W.

253.75108

CAS

89567-04-4

Similarity

N/A

ID: 252027

methyl 2-methyl-5-[(methylamino)methyl]furan-3-carboxylate hydrochloride

$$$$ Data

M. F.

C9H14ClNO3

Suppliers	Catalog Number
Enamine	EN300-23922

Database	Data ID
PubChem	16285960

M. W.

219.66536

CAS

Similarity

N/A

ID: 252028

3-amino-4-methoxybenzene-1-sulfonamide

$$$$ Data

M. F.

C7H10N2O3S

Suppliers	Catalog Number
Enamine	EN300-23923

Database	Data ID
PubChem	81451

M. W.

202.2309

CAS

6973-08-6

Similarity

N/A

ID: 252029

1-cyclopropyl-2,5-dihydro-1H-pyrrole-2,5-dione

$$$$ Data

M. F.

C7H7NO2

Suppliers	Catalog Number
Enamine	EN300-23924

Database	Data ID
PubChem	1516407

M. W.

137.13598

CAS

28001-33-4

Similarity

N/A

ID: 252030

ethyl 1-benzyl-4-oxopiperidine-3-carboxylate

$$$$ Data

M. F.

C15H19NO3

Suppliers	Catalog Number
Enamine	EN300-23925

Database	Data ID
PubChem	102624

M. W.

261.31626

CAS

41276-30-6

Similarity

N/A

ID: 252031

(2E)-3-[4-(methoxycarbonyl)-5-methylfuran-2-yl]prop-2-enoic acid

$$$$ Data

M. F.

C10H10O5

Suppliers	Catalog Number
Enamine	EN300-23927

Database	Data ID
PubChem	9102272

M. W.

210.1834

CAS

Similarity

N/A

ID: 252032

N-(3-chloroquinoxalin-2-yl)-3-methylbenzene-1-sulfonamide

$$$$ Data

M. F.

C15H12ClN3O2S

Suppliers	Catalog Number
Enamine	EN300-23928

Database	Data ID
PubChem	4200291

M. W.

333.79268

CAS

Similarity

N/A

ID: 252033

6-(chloromethyl)-5-ethoxy-2-methyl-2,3-dihydro-1-benzofuran

$$$$ Data

M. F.

C12H15ClO2

Suppliers	Catalog Number
Enamine	EN300-23930

Database	Data ID
PubChem	16227076

M. W.

226.6993

CAS

Similarity

N/A

ID: 252034

4-chloro-1-methyl-1H-pyrrole-2-carboxylic acid

$$$$ Data

M. F.

C6H6ClNO2

Suppliers	Catalog Number
ChemBridge	4045702
Enamine	EN300-23931

Database	Data ID
PubChem	9115266

M. W.

159.57034

CAS

877964-38-0

Similarity

N/A

ID: 252035

2-(2-oxo-2,3-dihydro-1H-indol-3-yl)acetonitrile

$$$$ Data

M. F.

C10H8N2O

Suppliers	Catalog Number
Enamine	EN300-23935

Database	Data ID
PubChem	98365

M. W.

172.18332

CAS

54744-66-0

Similarity

N/A

ID: 252036

5-(benzylamino)-8-thia-4,6-diazatricyclo[7.4.0.0²,⁷]tridec...

$$$$ Data

M. F.

C17H17N3OS

Suppliers	Catalog Number
Enamine	EN300-23936

Database	Data ID
PubChem	1067670

M. W.

311.40138

CAS

66607-49-6

Similarity

N/A

ID: 252037

3-chloro-2-(chloromethyl)-1-benzothiophene

$$$$ Data

M. F.

C9H6Cl2S

Suppliers	Catalog Number
Enamine	EN300-23937

Database	Data ID
PubChem	9115259

M. W.

217.11494

CAS

Similarity

N/A

ID: 252038

{2,6-dimethylimidazo[2,1-b][1,3]thiazol-5-yl}methanol

$$$$ Data

M. F.

C8H10N2OS

Suppliers	Catalog Number
Enamine	EN300-23943

Database	Data ID
PubChem	9115255

M. W.

182.2428

CAS

123772-40-7

Similarity

N/A

ID: 252039

1-(2,3-dihydro-1,4-benzodioxin-6-yl)cyclopentan-1-amine hydrochloride

$$$$ Data

M. F.

C13H18ClNO2

Suppliers	Catalog Number
Enamine	EN300-23944

Database	Data ID
PubChem	16286987

M. W.

255.74052

CAS

Similarity

N/A

ID: 252040

2-(2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C9H8FNO4S

Suppliers	Catalog Number
Enamine	EN300-23946

Database	Data ID
PubChem	16227077

M. W.

245.2275232

CAS

Similarity

N/A

ID: 252041

2-(1H-1,3-benzodiazol-1-yl)ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C9H9FN2O2S

Suppliers	Catalog Number
Enamine	EN300-23947

Database	Data ID
PubChem	4107358

M. W.

228.2433632

CAS

Similarity

N/A

ID: 252042

2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C10H8FNO4S

Suppliers	Catalog Number
Enamine	EN300-23948

Database	Data ID
PubChem	3095827

M. W.

257.2382232

CAS

Similarity

N/A

ID: 252043

2-{4-oxo-3H,4H-thieno[2,3-d]pyrimidin-3-yl}ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C8H7FN2O3S2

Suppliers	Catalog Number
Enamine	EN300-23949

Database	Data ID
PubChem	16227078

M. W.

262.2811832

CAS

Similarity

N/A

ID: 252044

2-(morpholin-4-ylmethyl)quinazolin-4-amine

$$$$ Data

M. F.

C13H16N4O

Suppliers	Catalog Number
Enamine	EN300-23950

Database	Data ID
PubChem	9118374

M. W.

244.29234

CAS

Similarity

N/A

ID: 252045

2-[(benzylcarbamoyl)amino]acetic acid

$$$$ Data

M. F.

C10H12N2O3

Suppliers	Catalog Number
Enamine	EN300-23951

Database	Data ID
PubChem	9115257

M. W.

208.21388

CAS

34582-41-7

Similarity

N/A

ID: 252046

2-(N-methyl4-fluorobenzenesulfonamido)ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C9H11F2NO4S2

Suppliers	Catalog Number
Enamine	EN300-23952

Database	Data ID
PubChem	16227079

M. W.

299.3147464

CAS

Similarity

N/A

ID: 252047

2-(8-chloro-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-7-yl)ethane-1-sul...

$$$$ Data

M. F.

C9H10ClFN4O4S

Suppliers	Catalog Number
Enamine	EN300-23953

Database	Data ID
PubChem	16227080

M. W.

324.7165032

CAS

Similarity

N/A

ID: 252048

2-(1H-1,2,3-benzotriazol-1-yl)ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C8H8FN3O2S

Suppliers	Catalog Number
Enamine	EN300-23956

Database	Data ID
PubChem	5200975

M. W.

229.2314232

CAS

Similarity

N/A

ID: 252049

2-(1,1,3-trioxo-2,3-dihydro-1λ⁶,2-benzothiazol-2-yl)ethane-1-sulfony...

$$$$ Data

M. F.

C9H8FNO5S2

Suppliers	Catalog Number
Enamine	EN300-23957

Database	Data ID
PubChem	16227081

M. W.

293.2919232

CAS

Similarity

N/A

ID: 252050

2-(5-phenyl-2H-1,2,3,4-tetrazol-2-yl)ethane-1-sulfonyl fluoride

$$$$ Data

M. F.

C9H9FN4O2S

Suppliers	Catalog Number
Enamine	EN300-23958

Database	Data ID
PubChem	16227082

M. W.

256.2567632

CAS

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