Heterocyclic Building Blocks

1,3-Dimethyluracil

Purity:

≥ 99% (Assay)

Synonym:

2,4-Dihydroxy-1,3-dimethylpyrimidine

Catalog Number:

25591

CAS Number:

874-14-6

Purity Limit:

≥ 99% (Assay)

MDL NO:

MFCD00038065

Molecular Formula:

C₆H₈N₂O₂

Molecular Weight:

140.14

Specification Sheet SDS
Methyl 2,4-dioxo-4-(2-thienyl)butanoate

Purity:

≥ 98% (HPLC)

Synonym:

2,4-Dioxo-4-thiophen-2-yl-butyric acid methyl ester

Catalog Number:

25601

CAS Number:

57409-51-5

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD01249731

Molecular Formula:

C₉H₈O₄S

Molecular Weight:

212.22

Specification Sheet SDS
2-Chloro-5-nitropyridine

Purity:

≥ 98% (GC)

Synonym:

3-Nitro-6-chloropyridine

Catalog Number:

25556

CAS Number:

4548-45-2, 34515-81-6

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00006240

Molecular Formula:

C₅H₃ClN₂O₂

Molecular Weight:

158.54

Specification Sheet SDS
Methyl 5-bromopyridine-3-carboxylate

Purity:

≥ 98% (HPLC)

Catalog Number:

25549

CAS Number:

29681-44-5

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00173668

Molecular Formula:

C₇H₆BrNO₂

Molecular Weight:

216.03

Specification Sheet SDS
2-Chloro-5-aminopyridine

Purity:

≥ 99% (GC)

Synonym:

3-Amino-6-chloropyridine

Catalog Number:

25555

CAS Number:

5350-93-6

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00006243

Molecular Formula:

C₅H₅ClN₂

Molecular Weight:

128.56

Specification Sheet SDS
2-Amino-4-phenylpyrimidine

Purity:

≥ 98% (HPLC)

Synonym:

4-Phenyl-2-pyrimidinamine

Catalog Number:

25565

CAS Number:

2305-87-5

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00094706

Molecular Formula:

C₁₀H₉N₃

Molecular Weight:

171.2

Specification Sheet SDS
Methyl 2-chloro-6-picoline-4-carboxylate

Purity:

≥ 98% (HPLC)

Synonym:

2-Chloro-6-methyl pyridine-4-carboxylic acid methyl ester

Catalog Number:

25554

CAS Number:

3998-90-1

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD04038391

Molecular Formula:

C₈H₈ClNO₂

Molecular Weight:

185.61

Specification Sheet SDS
5-Bromopyridine-3-carboxylic acid

Purity:

≥ 99% (HPLC)

Synonym:

5-Bromonicotinic acid

Catalog Number:

25550

CAS Number:

20826-04-4

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00009783

Molecular Formula:

C₆H₄BrNO₂

Molecular Weight:

202.01

Specification Sheet SDS
2-Chloro-6-methylpyridine-4-carboxylic acid

Purity:

≥ 98% (HPLC)

Synonym:

2-Chloro-6-methylisonicotinic acid

Catalog Number:

25553

CAS Number:

25462-85-5

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00052830

Molecular Formula:

C₇H₆ClNO₂

Molecular Weight:

171.58

Specification Sheet SDS
3-Cyano-5-bromopyridine

Purity:

≥ 99% (Assay)

Synonym:

5-Bromonicotinonitrile

Catalog Number:

25548

CAS Number:

35590-37-5

Purity Limit:

≥ 99% (Assay)

MDL NO:

MFCD00174363

Molecular Formula:

C₆H₃BrN₂

Molecular Weight:

183.01

Specification Sheet SDS
(5-Phenyl-3-isoxazolyl)methanol

Purity:

≥ 98% (HPLC)

Synonym:

5-Phenyl-3-isoxazolemethanol

Catalog Number:

25511

CAS Number:

1619-37-0

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD01444104

Molecular Formula:

C₁₀H₉NO₂

Molecular Weight:

175.19

Specification Sheet SDS
5-(4-Methylphenyl)isoxazole-3-carboxaldehyde

Purity:

≥ 97% (HPLC)

Catalog Number:

25521

CAS Number:

640292-02-0

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD06199344

Molecular Formula:

C₁₁H₉NO₂

Molecular Weight:

187.2

Specification Sheet SDS
5-Methylisoxazole-3-carboxylic acid

Purity:

≥ 98% (GC)

Catalog Number:

25497

CAS Number:

3405-77-4

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD01318162

Molecular Formula:

C₅H₅NO₃

Molecular Weight:

127.1

Specification Sheet SDS
3-(4-Nitrophenyl)isoxazole

Purity:

≥ 96% (GC)

Catalog Number:

25492

CAS Number:

4264-05-5

Purity Limit:

≥ 96% (GC)

MDL NO:

MFCD08446390

Molecular Formula:

C₉H₆N₂O₃

Molecular Weight:

190.16

Specification Sheet SDS
5-Phenylisoxazole-3-carboxylic acid

Purity:

≥ 99% (HPLC)

Catalog Number:

25498

CAS Number:

14441-90-8

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00464221

Molecular Formula:

C₁₀H₇NO₃

Molecular Weight:

189.17

Specification Sheet SDS
3-(4-Methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde

Purity:

≥ 97% (HPLC)

Catalog Number:

25278

CAS Number:

36640-52-5

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00744772

Molecular Formula:

C₁₇H₁₄N₂O

Molecular Weight:

262.31

Specification Sheet SDS
(2-Benzimidazolyl)acetonitrile

Synonym:

2-(Cyanomethyl)benzimidazole

Catalog Number:

25001

CAS Number:

4414-88-4

MDL NO:

MFCD00005601

Molecular Formula:

C₉H₇N₃

Molecular Weight:

157.18

SDS
1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acid

Purity:

≥ 99% (HPLC)

Catalog Number:

25101

CAS Number:

50920-65-5

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00156147

Molecular Formula:

C₇H₁₀N₂O₂

Molecular Weight:

154.17

Specification Sheet SDS
4-Bromo-3,5-dimethylpyrazole

Purity:

≥ 99% (HPLC)

Synonym:

3,5-Dimethyl-4-bromopyrazole

Catalog Number:

25055

CAS Number:

3398-16-1

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00005242

Molecular Formula:

C₅H₇BrN₂

Molecular Weight:

175.03

Specification Sheet SDS
7-Deazahypoxanthine

Purity:

≥ 98% (HPLC)

Synonym:

3,7-Dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

Catalog Number:

25008

CAS Number:

3680-71-5

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD08445809

Molecular Formula:

C₆H₅N₃O

Molecular Weight:

135.13

Specification Sheet SDS
Ethyl 5-Amino-1-phenyl-4-pyrazolecarboxylate

Purity:

≥ 99% (HPLC)

Synonym:

5-Amino-4-carbethoxy-1-phenylpyrazole

Catalog Number:

25071

CAS Number:

16078-71-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00020731

Molecular Formula:

C₁₂H₁₃N₃O₂

Molecular Weight:

231.25

Specification Sheet SDS
1-(2-Chlorophenyl)-3-methyl-5-pyrazolone

Purity:

≥ 98% (HPLC)

Catalog Number:

25274

CAS Number:

14580-22-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00059717

Molecular Formula:

C₁₀H₉ClN₂O

Molecular Weight:

208.65

SDS
4-Bromo-1H-imidazole

Purity:

≥ 98% (HPLC)

Catalog Number:

25039

CAS Number:

2302-25-2

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00047021

Molecular Formula:

C₃H₃BrN₂

Molecular Weight:

146.98

Specification Sheet SDS
1,5-Dimethyl-1H-pyrazole-3-carboxylic acid methyl ester

Purity:

≥ 99% (HPLC)

Synonym:

Methyl 1,5-dimethylpyrazole-3-carboxylate

Catalog Number:

25007

CAS Number:

10250-61-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD06661312

Molecular Formula:

C₇H₁₀N₂O₂

Molecular Weight:

154.17

Specification Sheet SDS
1,3-Dimethyl-1H-pyrazole-5-carboxylic acid

Purity:

≥ 99% (HPLC)

Catalog Number:

25100

CAS Number:

5744-56-9

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00159636

Molecular Formula:

C₆H₈N₂O₂

Molecular Weight:

140.14

Specification Sheet SDS
Ethyl 2-Aminothiazole-5-carboxylate

Purity:

≥ 98.0% (HPLC)

Synonym:

2-Amino-thiazole-5-carboxylic acid ethyl ester

Catalog Number:

24994

CAS Number:

32955-21-8

Purity Limit:

≥ 98.0% (HPLC)

MDL NO:

MFCD00602139

Molecular Formula:

C₆H₈N₂O₂S

Molecular Weight:

172.21

Specification Sheet SDS
2-Nitrothiophene

Purity:

≥ 99% (GC)

Catalog Number:

24987

CAS Number:

609-40-5

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005425

Molecular Formula:

C₄H₃NO₂S

Molecular Weight:

129.14

Specification Sheet SDS
4-(4-Bromophenyl)morpholine

Purity:

≥ 99% (HPLC)

Synonym:

1-Bromo-4-morpholinobenzene

Catalog Number:

24988

CAS Number:

30483-75-1

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD04112483

Molecular Formula:

C₁₀H₁₂BrNO

Molecular Weight:

242.12

Specification Sheet SDS
Ethyl 2-bromothiazole-4-carboxylate

Purity:

≥ 99% (HPLC)

Synonym:

2-Bromothiazole-4-carboxylic acid ethyl ester

Catalog Number:

24982

CAS Number:

100367-77-9

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD03788564

Molecular Formula:

C₆H₆BrNO₂S

Molecular Weight:

236.09

Specification Sheet SDS
5-Amino-1,3-diphenyl-1H-pyrazole

Purity:

≥ 97% (HPLC)

Synonym:

1,3-Diphenyl-1H-pyrazol-5-ylamine

Catalog Number:

24971

CAS Number:

5356-71-8

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00084878

Molecular Formula:

C₁₅H₁₃N₃

Molecular Weight:

235.29

Specification Sheet SDS
4-Bromo-3-methyl-1-phenyl-1H-pyrazol-5-amine

Purity:

≥ 97% (HPLC)

Catalog Number:

24966

CAS Number:

69464-98-8

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD04039926

Molecular Formula:

C₁₀H₁₀BrN₃

Molecular Weight:

252.11

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

Purity:

≥ 97% (HPLC)

Synonym:

4-Chloro-2-(1H-pyrazol-3-yl)phenol

Catalog Number:

24965

CAS Number:

18704-67-1

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00209566

Molecular Formula:

C₉H₇ClN₂O

Molecular Weight:

194.62

Specification Sheet SDS
5-Amino-3-methyl-1-phenylpyrazole

Purity:

≥ 98% (HPLC)

Synonym:

3-Methyl-1-phenylpyrazole-5-ylamine

Catalog Number:

24968

CAS Number:

1131-18-6

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00020727

Molecular Formula:

C₁₀H₁₁N₃

Molecular Weight:

173.22

Specification Sheet SDS
5-Methylthio-1,3,4-thiadiazole-2-thiol

Purity:

≥ 99% (HPLC)

Synonym:

2-Mercapto-5-methylmercapto-1,3,4-thiadiazole

Catalog Number:

24958

CAS Number:

6264-40-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00051648

Molecular Formula:

C₃H₄N₂S₃

Molecular Weight:

164.28

Specification Sheet SDS
3-Chlorobenzo[b]thiophen-2-carbonyl chloride

Purity:

≥ 99% (HPLC)

Catalog Number:

24942

CAS Number:

21815-91-8

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00053069

Molecular Formula:

C₉H₄Cl₂OS

Molecular Weight:

231.1

Specification Sheet SDS
4-(4-Chlorophenyl)-5-methylthiazol-2-amine

Purity:

≥ 97% (HPLC)

Catalog Number:

24943

CAS Number:

82632-77-7

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00731832

Molecular Formula:

C₁₀H₉ClN₂S

Molecular Weight:

224.71

Specification Sheet SDS
3-(4-Methoxyphenyl)pyrazole-4-carboxaldehyde

Purity:

≥ 99% (HPLC)

Catalog Number:

24884

CAS Number:

199682-73-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD01133696

Molecular Formula:

C₁₁H₁₀N₂O₂

Molecular Weight:

202.21

Specification Sheet SDS
5-Phenylisoxazole

Purity:

≥ 99% (GC)

Catalog Number:

24885

CAS Number:

1006-67-3

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00090038

Molecular Formula:

C₉H₇NO

Molecular Weight:

145.16

Specification Sheet SDS
2,5-Dibromopyridine

Purity:

≥ 99% (HPLC)

Synonym:

3,6-Dibromopyridine

Catalog Number:

24773

CAS Number:

624-28-2

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00006221

Molecular Formula:

C₅H₃Br₂N

Molecular Weight:

236.89

Specification Sheet SDS
5-Amino-3-(4-chlorophenyl)pyrazole

Purity:

≥ 98% (HPLC)

Synonym:

3-(4-Chlorophenyl)-1H-pyrazol-5-amine

Catalog Number:

24762

CAS Number:

78583-81-0

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00053046

Molecular Formula:

C₉H₈ClN₃

Molecular Weight:

193.64

Specification Sheet SDS
2-Bromo-4-thiazolecarboxylic acid

Purity:

≥ 98% (HPLC)

Catalog Number:

24727

CAS Number:

5198-88-9

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD04115729

Molecular Formula:

C₄H₂BrNO₂S

Molecular Weight:

208.04

Specification Sheet SDS
2-Bromothiazole-5-carboxylic acid

Purity:

≥ 98% (HPLC)

Synonym:

2-Bromo-5-thiazolecarboxylic acid

Catalog Number:

24728

CAS Number:

54045-76-0

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD04115730

Molecular Formula:

C₄H₂BrNO₂S

Molecular Weight:

208.04

Specification Sheet SDS
6,8-Dichlorochromone-3-carboxaldehyde

Purity:

≥ 98% (GC)

Synonym:

6,8-Dichloro-3-formylchromone

Catalog Number:

24714

CAS Number:

64481-10-3

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00051510

Molecular Formula:

C₁₀H₄Cl₂O₃

Molecular Weight:

243.04

SDS
Thiazole-5-carbaldehyde

Purity:

≥ 97% (GC)

Synonym:

Thiazole-5-carboxyaldehyde

Catalog Number:

24726

CAS Number:

1003-32-3

Purity Limit:

≥ 97% (GC)

MDL NO:

MFCD02179516

Molecular Formula:

C₄H₃NOS

Molecular Weight:

113.14

Specification Sheet SDS
3-Methyl-1H-pyrazole-4-carbaldehyde

Purity:

≥ 95% (HPLC)

Synonym:

3-Methylpyrazole-4-carboxaldehyde

Catalog Number:

24725

CAS Number:

112758-40-4

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD01313822

Molecular Formula:

C₅H₆N₂O

Molecular Weight:

110.12

Specification Sheet SDS
6-Quinolinecarbaldehyde

Purity:

≥ 95% (HPLC)

Synonym:

Quinoline-6-carboxaldehyde

Catalog Number:

24722

CAS Number:

4113-04-6

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD00805836

Molecular Formula:

C₁₀H₇NO

Molecular Weight:

157.17

Specification Sheet SDS
Ethyl 2-bromo-4-methylthiazole-5-carboxylate

Purity:

≥ 97% (HPLC)

Synonym:

2-Bromo-4-methyl-thiazole-5-carboxylic acid ethyl ester

Catalog Number:

24705

CAS Number:

22900-83-0

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD03791227

Molecular Formula:

C₇H₈BrNO₂S

Molecular Weight:

250.12

Specification Sheet SDS
Ethyl benzothiazole-2-carboxylate

Purity:

≥ 97% (HPLC)

Synonym:

Benzothiazole-2-carboxylic acid ethyl ester

Catalog Number:

24695

CAS Number:

32137-76-1

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00848360

Molecular Formula:

C₁₀H₉NO₂S

Molecular Weight:

207.25

Specification Sheet SDS
6-Methylchromone-2-carboxylic acid

Purity:

≥ 99% (HPLC)

Synonym:

6-Methyl-4-oxo-4H-chromene-2-carboxylic acid

Catalog Number:

24691

CAS Number:

5006-44-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00239435

Molecular Formula:

C₁₁H₈O₄

Molecular Weight:

204.18

Specification Sheet SDS
6-Bromo-4-hydroxycoumarin

Purity:

≥ 95% (HPLC)

Synonym:

6-Bromo-4-hydroxy-2H-chromen-2-one

Catalog Number:

24690

CAS Number:

4139-61-1

Purity Limit:

≥ 95% (HPLC)

MDL NO:

MFCD00239372

Molecular Formula:

C₉H₅BrO₃

Molecular Weight:

241.04

Specification Sheet SDS

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