Heterocyclic Building Blocks

2-Pyrrolidone

Purity:

≥ 99% (GC)

Synonym:

α-Pyrrolidone

Catalog Number:

26934

CAS Number:

616-45-5

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005270

Molecular Formula:

C₄H₇NO

Molecular Weight:

85.11

Specification Sheet SDS
2-Ethylimidazole

Purity:

≥ 99% (GC)

Synonym:

2-Ethylglyoxaline

Catalog Number:

26929

CAS Number:

1072-62-4

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005192

Molecular Formula:

C₅H₈N₂

Molecular Weight:

96.13

Specification Sheet SDS
1,3-Dioxacyclopentane, Anhydrous, Contains ~ 75 ppm BHT as inhibitor.

Hazmat

Purity:

≥ 99% (Assay)

Synonym:

1,3-Dioxolane

Hazmat

Catalog Number:

26865

CAS Number:

646-06-0

Purity Limit:

≥ 99% (Assay)

MDL NO:

MFCD00003207

Molecular Formula:

C₃H₆O₂

Molecular Weight:

74.08

Specification Sheet SDS
N-(2-Hydroxyethyl)pyrrolidine

Hazmat

Purity:

≥ 99% (GC)

Synonym:

Pyrrolidine-1-ethanol

Hazmat

Catalog Number:

26862

CAS Number:

2955-88-6

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00003181

Molecular Formula:

C₆H₁₃NO

Molecular Weight:

115.18

Specification Sheet SDS
5-Amino-3-methylisoxazole

Purity:

≥ 99% (HPLC)

Synonym:

3-Methyl-5-aminoisoxazole

Catalog Number:

26860

CAS Number:

14678-02-5

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00003151

Molecular Formula:

C₄H₆N₂O

Molecular Weight:

98.1

Specification Sheet SDS
N-Methyl-3-hydroxypyrrolidine

Purity:

≥ 98% (GC)

Synonym:

N-Methyl-3-pyrrolidinol

Catalog Number:

26861

CAS Number:

13220-33-2

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00003176

Molecular Formula:

C₅H₁₁NO

Molecular Weight:

101.15

Specification Sheet SDS
N-Vinyl-2-pyrrolidone Stabililzed with hydroquinone methyl ether

Hazmat

Purity:

≥ 99% (GC)

Synonym:

1-Vinyl-2-pyrrolidinone

Hazmat

Catalog Number:

26863

CAS Number:

88-12-0

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00003197

Molecular Formula:

C₆H₉NO

Molecular Weight:

111.14

Specification Sheet SDS
1-Phenyl-5-mercaptotetrazole

Hazmat

Purity:

≥ 99% (HPLC)

Synonym:

5-Mercapto-1-phenyltetrazole

Hazmat

Catalog Number:

26859

CAS Number:

86-93-1

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00003129

Molecular Formula:

C₇H₆N₄S

Molecular Weight:

178.22

Specification Sheet SDS
2-Amino-5-mercapto-1,3,4-thiadiazole

Purity:

≥ 99% (HPLC)

Synonym:

2-Amino-1,3,4-thiadiazole-2-thiol

Catalog Number:

26858

CAS Number:

2349-67-9

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00003108

Molecular Formula:

C₂H₃N₃S₂

Molecular Weight:

133.2

Specification Sheet SDS
1-Ethyl-1H-pyrrole-2-carbaldehyde

Purity:

≥ 96% (Assay)

Catalog Number:

26689

CAS Number:

2167-14-8

Purity Limit:

≥ 96% (Assay)

MDL NO:

MFCD11909543

Molecular Formula:

C₇H₉NO

Molecular Weight:

123.2

Specification Sheet SDS
Dibenzo[b,d]furan-4-carbaldehyde

Purity:

≥ 99% (HPLC)

Catalog Number:

26675

CAS Number:

96706-46-6

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD03306027

Molecular Formula:

C₁₃H₈O₂

Molecular Weight:

196.2

Specification Sheet SDS
5-Bromo-3-methoxypyrazin-2-amine

Purity:

≥ 95% (HPLC)

Synonym:

2-Amino-5-bromo-3-methoxypyrazine

Catalog Number:

26252

CAS Number:

5900-13-0

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD08275726

Molecular Formula:

C₅H₆BrN₃O

Molecular Weight:

204.03

Specification Sheet SDS
2,4-Dichloro-5-nitropyridine

Purity:

≥ 95% (HPLC)

Catalog Number:

26210

CAS Number:

4487-56-3

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD07368834

Molecular Formula:

C₅H₂Cl₂N₂O₂

Molecular Weight:

192.99

Specification Sheet SDS
7-Bromoisoquinoline

Purity:

≥ 95% (HPLC)

Synonym:

3-Bromomethyl-4-cyanobenzoic acid methyl ester

Catalog Number:

26209

CAS Number:

58794-09-5

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD07368661

Molecular Formula:

C₉H₆BrN

Molecular Weight:

208.06

Specification Sheet SDS
5-Chloro-7-azaindole

Purity:

≥ 99% (HPLC)

Synonym:

5-Chloro-1H-pyrrolo[2,3-b]pyridine

Catalog Number:

26202

CAS Number:

866546-07-8

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD06659676

Molecular Formula:

C₇H₅ClN₂

Molecular Weight:

152.58

Specification Sheet SDS
4-Bromooxindole

Purity:

≥ 98% (HPLC)

Synonym:

4-Bromoindolin-2-one

Catalog Number:

26203

CAS Number:

99365-48-7

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD06659911

Molecular Formula:

C₈H₆BrNO

Molecular Weight:

212.05

Specification Sheet SDS
7-Bromobenzo[b]thiophene

Purity:

≥ 98% (GC)

Catalog Number:

26201

CAS Number:

1423-61-6

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD06657729

Molecular Formula:

C₈H₅BrS

Molecular Weight:

213.09

SDS
Tetrahydro-2H-pyran-4-carbonyl chloride

Hazmat

Purity:

≥ 98% (GC)

Hazmat

Catalog Number:

26191

CAS Number:

40191-32-0

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD06200863

Molecular Formula:

C₆H₉ClO₂

Molecular Weight:

148.59

Specification Sheet SDS
5-Amino-4-chloropyrimidine

Purity:

≥ 95% (HPLC)

Synonym:

4-Chloro-5-aminopyrimidine

Catalog Number:

26197

CAS Number:

54660-78-5

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD06412561

Molecular Formula:

C₄H₄ClN₃

Molecular Weight:

129.55

Specification Sheet SDS
2,4-Dichlorotriazine

Purity:

≥ 97% (HPLC)

Synonym:

2,4-Dichloro-1,3,5-triazine

Catalog Number:

26184

CAS Number:

2831-66-5

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD04115347

Molecular Formula:

C₃HCl₂N₃

Molecular Weight:

149.97

Specification Sheet SDS
7-Bromoquinoline

Purity:

≥ 95% (HPLC)

Catalog Number:

26169

CAS Number:

4965-36-0

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD03695823

Molecular Formula:

C₉H₆BrN

Molecular Weight:

208.06

Specification Sheet SDS
2,6-Dichloro-4-methylnicotinonitrile

Purity:

≥ 98% (HPLC)

Synonym:

2,6-Dichloro-4-methylpyridine-3-carbonitrile

Catalog Number:

26092

CAS Number:

875-35-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00052633

Molecular Formula:

C₇H₄Cl₂N₂

Molecular Weight:

187.03

Specification Sheet SDS
4-Aminoisoquinoline

Purity:

≥ 98% (HPLC)

Synonym:

Isoquinolin-4-ylamine

Catalog Number:

26088

CAS Number:

23687-25-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00034752

Molecular Formula:

C₉H₈N₂

Molecular Weight:

144.18

Specification Sheet SDS
2,4-Diamino-6-methyl-1,3,5-triazine

Purity:

≥ 99% (HPLC)

Synonym:

6-Methyl-1,3,5-triazine-2,4-diamine

Catalog Number:

26086

CAS Number:

542-02-9

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00023192

Molecular Formula:

C₄H₇N₅

Molecular Weight:

125.13

Specification Sheet SDS
6-Chloro-2-methyl-2H-1,4-benzoxazin-3(4H)-one

Purity:

≥ 98% (GC)

Catalog Number:

26083

CAS Number:

5791-00-4

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD01744501

Molecular Formula:

C₉H₈ClNO₂

Molecular Weight:

197.62

SDS
2-Amino-4-(p-tolyl)thiazole

Purity:

≥ 95% (HPLC)

Synonym:

4-p-Tolyl-thiazol-2-ylamine

Catalog Number:

26080

CAS Number:

2103-91-5

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD00170264

Molecular Formula:

C₁₀H₁₀N₂S

Molecular Weight:

190.27

Specification Sheet SDS
2-Amino-4-(4-bromophenyl)thiazole

Purity:

≥ 98% (HPLC)

Synonym:

4-(4-Bromophenyl)thiazol-2-amine

Catalog Number:

26081

CAS Number:

2103-94-8

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00051953

Molecular Formula:

C₉H₇BrN₂S

Molecular Weight:

255.14

Specification Sheet SDS
2-Chloro-4-methoxypyridine

Purity:

≥ 97% (GC)

Catalog Number:

26079

CAS Number:

17228-69-2

Purity Limit:

≥ 97% (GC)

MDL NO:

MFCD02093951

Molecular Formula:

C₆H₆ClNO

Molecular Weight:

143.57

Specification Sheet SDS
Ethyl 3-methyl-5-pyrazolecarboxylate

Purity:

≥ 99% (HPLC)

Synonym:

3-Methyl-1H-pyrazole-5-carboxylic acid ethyl ester

Catalog Number:

26076

CAS Number:

4027-57-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00052514

Molecular Formula:

C₇H₁₀N₂O₂

Molecular Weight:

154.17

Specification Sheet SDS
2-Chloro-4-nitropyridine

Purity:

≥ 99% (HPLC)

Catalog Number:

26078

CAS Number:

23056-36-2

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00661454

Molecular Formula:

C₅H₃ClN₂O₂

Molecular Weight:

158.54

Specification Sheet SDS
2,6-Dichlorobenzothiazole

Purity:

≥ 99% (HPLC)

Synonym:

2,6-Dichloro-1,3-benzothiazole

Catalog Number:

26072

CAS Number:

3622-23-9

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00044101

Molecular Formula:

C₇H₃Cl₂NS

Molecular Weight:

204.08

Specification Sheet SDS
5-Bromo-2-benzoxazolinone

Purity:

≥ 98% (HPLC)

Synonym:

5-Bromo-2(3H)-benzoxazolone

Catalog Number:

26067

CAS Number:

14733-73-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD01664246

Molecular Formula:

C₇H₄BrNO₂

Molecular Weight:

214.02

Specification Sheet SDS
2-Amino-6-bromo benthiazole

Purity:

≥ 97% (HPLC)

Catalog Number:

26064

CAS Number:

15864-32-1

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00152229

Molecular Formula:

C₇H₅BrN₂S

Molecular Weight:

229.1

Specification Sheet SDS
4,5-Dihydro-6-phenyl-3(2H)-pyridazinone

Purity:

≥ 99% (HPLC)

Synonym:

6-Phenyl-4,5-dihydro-2H-pyridazin-3-one

Catalog Number:

26065

CAS Number:

1011-46-7

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00099597

Molecular Formula:

C₁₀H₁₀N₂O

Molecular Weight:

174.2

Specification Sheet SDS
5,7-Dihydroxy-4-methylcoumarin

Purity:

≥ 97% (HPLC)

Synonym:

5,7-Dihydroxy-4-methyl-chromen-2-one

Catalog Number:

26061

CAS Number:

2107-76-8

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00016966

Molecular Formula:

C₁₀H₈O₄

Molecular Weight:

192.17

Specification Sheet SDS
1,4-Benzodioxan-6-yl methyl ketone

Purity:

≥ 97% (HPLC)

Synonym:

6-Acetyl-1,4-benzodioxane

Catalog Number:

26048

CAS Number:

2879-20-1

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00006823

Molecular Formula:

C₁₀H₁₀O₃

Molecular Weight:

178.19

Specification Sheet SDS
4-Imidazoleacetic acid hydrochloride

Purity:

≥ 95% (NMR)

Synonym:

(4-Imidazolyl)acetic acid hydrochloride

Catalog Number:

26054

CAS Number:

3251-69-2

Purity Limit:

≥ 95% (NMR)

MDL NO:

MFCD00012698

Molecular Formula:

C₅H₆N₂O₂·HCl

Molecular Weight:

162.58

Specification Sheet SDS
2-Chloro-6-methylquinoline carboxaldehyde

Purity:

≥ 97% (HPLC)

Synonym:

2-Chloro-3-formyl-6-methylquinoline

Catalog Number:

26050

CAS Number:

73568-27-1

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD01912773

Molecular Formula:

C₁₁H₈ClNO

Molecular Weight:

205.64

Specification Sheet SDS
2-Chloro-8-methylquinoline-3-carboxaldehyde

Purity:

≥ 98% (HPLC)

Catalog Number:

26052

CAS Number:

73568-26-0

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD02227041

Molecular Formula:

C₁₁H₈ClNO

Molecular Weight:

205.64

Specification Sheet SDS
2-Amino-5-(4-pyridinyl)-1,3,4-thiadiazole

Purity:

≥ 99% (HPLC)

Synonym:

5-(4-Pyridyl)-1,3,4-thiadiazol-2-amine

Catalog Number:

26043

CAS Number:

2002-04-2

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00473692

Molecular Formula:

C₇H₆N₄S

Molecular Weight:

178.22

Specification Sheet SDS
4-Methyl-1,2,3-thiadiazole-5-carboxylic acid

Catalog Number:

26041

CAS Number:

18212-21-0

MDL NO:

MFCD00173830

Molecular Formula:

C₄H₄N₂O₂S

Molecular Weight:

144.15

SDS
3-(2-Hydroxyphenyl)-1H-pyrazole

Purity:

≥ 98% (HPLC)

Catalog Number:

26027

CAS Number:

34810-67-8

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD03093876

Molecular Formula:

C₉H₈N₂O

Molecular Weight:

160.18

Specification Sheet SDS
6-Bromocoumarin-3-carboxylic acid

Purity:

≥ 98% (HPLC)

Synonym:

6-Bromo-2-oxochromene-3-carboxylic acid

Catalog Number:

26022

CAS Number:

2199-87-3

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00047640

Molecular Formula:

C₁₀H₅BrO₄

Molecular Weight:

269.05

Specification Sheet SDS
4-Bromo-2-(1H-pyrazol-3-yl)phenol

Purity:

≥ 98% (GC)

Synonym:

3-(5-Bromo-2-hydroxyphenyl)pyrazole

Catalog Number:

26030

CAS Number:

99067-15-9

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD03094026

Molecular Formula:

C₉H₇BrN₂O

Molecular Weight:

239.07

SDS
3-(5-Chloro-2-hydroxyphenyl)pyrazole

Purity:

≥ 98% (GC)

Catalog Number:

26029

CAS Number:

18704-67-1

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00218651

Molecular Formula:

C₉H₇ClN₂O

Molecular Weight:

194.62

Specification Sheet SDS
3-Acetyl-6-bromocoumarin

Purity:

≥ 98% (HPLC)

Synonym:

3-Acetyl-6-bromo-2-oxochromene

Catalog Number:

26023

CAS Number:

2199-93-1

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00024075

Molecular Formula:

C₁₁H₇BrO₃

Molecular Weight:

267.08

Specification Sheet SDS
6-Methylchromanone

Purity:

≥ 98% (GC)

Synonym:

6-Methylchroman-4-one

Catalog Number:

26024

CAS Number:

39513-75-2

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00024071

Molecular Formula:

C₁₀H₁₀O₂

Molecular Weight:

162.19

Specification Sheet SDS
4-Hydroxy-6-methylcoumarin

Purity:

≥ 97% (HPLC)

Synonym:

4-Hydroxy-6-methylchromen-2-one

Catalog Number:

26018

CAS Number:

13252-83-0

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00085738

Molecular Formula:

C₁₀H₈O₃

Molecular Weight:

176.17

Specification Sheet SDS
6-Methylflavone

Purity:

≥ 98% (HPLC)

Synonym:

6-Methyl-2-phenyl-4H-chromen-4-one

Catalog Number:

26016

CAS Number:

29976-75-8

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00017461

Molecular Formula:

C₁₆H₁₂O₂

Molecular Weight:

236.27

Specification Sheet SDS
3-Bromo-6-Chlorochromone

Purity:

≥ 99% (HPLC)

Synonym:

3-Bromo-6-Chloro-4H-chromen-4-one

Catalog Number:

26008

CAS Number:

73220-38-9

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD02093123

Molecular Formula:

C₉H₄BrClO₂

Molecular Weight:

259.49

Specification Sheet SDS

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