Heterocyclic Building Blocks

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3-Cyanoumbelliferone

Purity:

≥ 98% (HPLC)

Synonym:

3-Cyano-7-hydroxycoumarin

Catalog Number:

42789

CAS Number:

19088-73-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00037480

Molecular Formula:

C₁₀H₅NO₃

Molecular Weight:

187.15

Specification Sheet SDS
5-Benzotriazolecarboxylic acid

Purity:

≥ 99% (HPLC)

Synonym:

5-Carboxybenzotriazole

Catalog Number:

42705

CAS Number:

23814-12-2

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00012318

Molecular Formula:

C₇H₅N₃O₂

Molecular Weight:

163.14

Specification Sheet SDS
1,2,3-Benzotriazole

Purity:

≥ 99% (HPLC)

Synonym:

Azimidobenzene

Catalog Number:

42704

CAS Number:

95-14-7

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00005699

Molecular Formula:

C₆H₅N₃

Molecular Weight:

119.13

Specification Sheet SDS
Fenbendazole

Grade:

meets BP specification

Purity:

98.0 - 101.0% (Assay by titration)

Synonym:

Methyl [5-(phenylthio)benzimidazol-2-yl]carbamate

Catalog Number:

42598

Grade:

meets BP specification

CAS Number:

43210-67-9

Purity Limit:

98.0 - 101.0% (Assay by titration)

MDL NO:

MFCD00144301

Molecular Formula:

C₁₅H₁₃N₃O₂S

Molecular Weight:

299.35

Specification Sheet SDS
o-Sulfobenzimide

Purity:

≥ 99% (Assay by titration, HPLC)

Synonym:

o-Benzoic Sulfimide

Catalog Number:

39306

CAS Number:

81-07-2

Purity Limit:

≥ 99% (Assay by titration, HPLC)

MDL NO:

MFCD00005866

Molecular Formula:

C₇H₅NO₃S

Molecular Weight:

183.18

Specification Sheet SDS
Nitrofurazone

Purity:

≥ 98% (HPLC)

Synonym:

5-Nitrofurfural semicarbazone

Catalog Number:

38420

CAS Number:

59-87-0

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00003225

Molecular Formula:

C₆H₆N₄O₄

Molecular Weight:

198.14

Specification Sheet SDS
1,3-Dichloro-5,5-dimethylhydantoin

Hazmat

Purity:

≥ 97% (Assay by titration)

Synonym:

1,3-Dichloro-5,5-dimethyl-2,4-imidazolidinedione

Hazmat

Catalog Number:

37233

CAS Number:

118-52-5

Purity Limit:

≥ 97% (Assay by titration)

MDL NO:

MFCD00003190

Molecular Formula:

C₅H₆Cl₂N₂O₂

Molecular Weight:

197.02

Specification Sheet SDS
Albendazole

Purity:

98.5 - 102.0% (Assay by titration)

Synonym:

Methyl 5-(propylthio)-2-benzimidazolecarbamate

Catalog Number:

35327

CAS Number:

54965-21-8

Purity Limit:

98.5 - 102.0% (Assay by titration)

MDL NO:

MFCD00083232

Molecular Formula:

C₁₂H₁₅N₃O₂S

Molecular Weight:

265.33

Specification Sheet SDS
2,3,5,6-Tetramethylpyrazine

Grade:

FG, KOSHER, FEMA 3237

Purity:

≥ 99% (Assay)

Synonym:

Tetramethyl-2,3,5,6 pyrazine

Catalog Number:

34981

Grade:

FG, KOSHER, FEMA 3237

CAS Number:

1124-11-4

Purity Limit:

≥ 99% (Assay)

MDL NO:

MFCD00006146

Molecular Formula:

C₈H₁₂N₂

Molecular Weight:

136.19

Specification Sheet SDS
6-Methylcoumarin

Purity:

99 - 100%

Catalog Number:

34666

CAS Number:

92-48-8

Purity Limit:

99 - 100%

MDL NO:

MFCD00006875

Molecular Formula:

C₁₀H₈O₂

Molecular Weight:

160.17

Specification Sheet SDS
5-Methylfurfural

Hazmat

Grade:

Natural, FG, KOSHER, FEMA 2702

Purity:

99 - 100% (GC)

Synonym:

5-Methyl-2-furaldehyde

Hazmat

Catalog Number:

34665

Grade:

Natural, FG, KOSHER, FEMA 2702

CAS Number:

620-02-0

Purity Limit:

99 - 100% (GC)

MDL NO:

MFCD00003232

Molecular Formula:

C₆H₆O₂

Molecular Weight:

150.22

Specification Sheet SDS
2-Methoxy-3-methylpyrazine

Hazmat

Grade:

FG, KOSHER, FEMA 3183

Purity:

≥ 98% (GC)

Hazmat

Catalog Number:

34591

Grade:

FG, KOSHER, FEMA 3183

CAS Number:

2847-30-5

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00006127

Molecular Formula:

C₆H₈N₂O

Molecular Weight:

124.14

Specification Sheet SDS
Furfural

Hazmat

Grade:

Natural, meets FG specifications, Kosher, FEMA 2

Purity:

96 - 100% (GC)

Synonym:

2-Furaldehyde

Hazmat

Catalog Number:

34253

Grade:

Natural, meets FG specifications, Kosher, FEMA 2

CAS Number:

98-01-1

Purity Limit:

96 - 100% (GC)

MDL NO:

MFCD00003229

Molecular Formula:

C₅H₄O₂

Molecular Weight:

96.08

Specification Sheet SDS
2,5-Dimethyl-4-hydroxy-3(2H)-furanone

Grade:

meets FG specifications, KOSHER, FEMA 3174

Purity:

98 - 100% (GC)

Synonym:

Furaneol

Catalog Number:

34249

Grade:

meets FG specifications, KOSHER, FEMA 3174

CAS Number:

3658-77-3

Purity Limit:

98 - 100% (GC)

MDL NO:

MFCD00010706

Molecular Formula:

C₆H₈O₃

Molecular Weight:

128.13

Specification Sheet SDS
Indole

Hazmat

Grade:

FG, KOSHER, FEMA 2593

Purity:

≥ 99% (GC)

Synonym:

1H-Benzo[b]pyrrole

Hazmat

Catalog Number:

34393

Grade:

FG, KOSHER, FEMA 2593

CAS Number:

120-72-9

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005607

Molecular Formula:

C₈H₇N

Molecular Weight:

117.15

Specification Sheet SDS
Ethyl maltol

Grade:

meets FG specifications, KOSHER, FEMA 3487

Purity:

99 - 100% (GC)

Synonym:

2-Ethyl-3-hydroxy-4H-pyran-4-one

Catalog Number:

34185

Grade:

meets FG specifications, KOSHER, FEMA 3487

CAS Number:

4940-11-8

Purity Limit:

99 - 100% (GC)

MDL NO:

MFCD00059795

Molecular Formula:

C₇H₈O₃

Molecular Weight:

140.14

Specification Sheet SDS
2-Acetylpyrazine

Grade:

FG, Kosher, FEMA 3126

Purity:

≥ 99% (GC)

Synonym:

Acetylpyrazine

Catalog Number:

33758

Grade:

FG, Kosher, FEMA 3126

CAS Number:

22047-25-2

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00006134

Molecular Formula:

C₆H₆N₂O

Molecular Weight:

122.12

Specification Sheet SDS
Theobromine

Purity:

99 - 101% (Assay)

Synonym:

2,6-Dihydroxy-3,7-dimethylpurine

Catalog Number:

32534

CAS Number:

83-67-0

Purity Limit:

99 - 101% (Assay)

MDL NO:

MFCD00022830

Molecular Formula:

C₇H₈N₄O₂

Molecular Weight:

180.16

Specification Sheet SDS
5,7-Dichloro-8-quinolinol

Purity:

≥ 98% (GC)

Synonym:

5,7-Dichloro-8-hydroxyquinoline

Catalog Number:

32052

CAS Number:

773-76-2

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00006786

Molecular Formula:

C₉H₅Cl₂NO

Molecular Weight:

214.05

Specification Sheet SDS
1,2-Benzisothiazol-3(2H)-one

Hazmat

Purity:

≥ 99% (HPLC)

Synonym:

1,2-Benzisothiazol-3-one

Hazmat

Catalog Number:

31729

CAS Number:

2634-33-5

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00044001

Molecular Formula:

C₇H₅NOS

Molecular Weight:

151.19

Specification Sheet SDS
5,5-Dimethylhydantoin

Purity:

≥ 99% (HPLC)

Synonym:

5,5-Dimethylimidazolidine-2,4-dione

Catalog Number:

31506

CAS Number:

77-71-4

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00005266

Molecular Formula:

C₅H₈N₂O₂

Molecular Weight:

128.13

Specification Sheet SDS
Trimorpholinophosphine oxide

Purity:

≥ 98% (HPLC)

Synonym:

Phosphoric acid trimorpholide

Catalog Number:

31287

CAS Number:

4441-12-7

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00047406

Molecular Formula:

C₁₂H₂₄N₃O₄P

Molecular Weight:

305.31

Specification Sheet SDS
Allantoin

Grade:

meets USP specifications

Purity:

98.5-101.0% (Assay)

Synonym:

5-Ureidohydantoin

Catalog Number:

30702

Grade:

meets USP specifications

CAS Number:

97-59-6

Purity Limit:

98.5-101.0% (Assay)

MDL NO:

MFCD00005260

Molecular Formula:

C₄H₆N₄O₃

Molecular Weight:

158.12

Specification Sheet SDS
1-Ethylimidazole

Purity:

≥ 99% (GC)

Catalog Number:

30433

CAS Number:

7098-07-9

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00055389

Molecular Formula:

C₅H₈N₂

Molecular Weight:

96.13

Specification Sheet SDS
1H-imidazole-4-carboxylic acid

Purity:

≥ 98% (HPLC)

Synonym:

4(5)-Imidazolecarboxylic acid

Catalog Number:

29769

CAS Number:

1072-84-0

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00082203

Molecular Formula:

C₄H₄N₂O₂

Molecular Weight:

112.09

Specification Sheet SDS
3-Amino-1,2,4-triazole-5-thiol

Purity:

≥ 98% (HPLC)

Catalog Number:

29088

CAS Number:

16691-43-3

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00005231

Molecular Formula:

C₂H₄N₄S

Molecular Weight:

116.15

Specification Sheet SDS
2-Mercaptobenzimidazole

Hazmat

Purity:

≥ 99.5%

Hazmat

Catalog Number:

28342

CAS Number:

583-39-1

Purity Limit:

≥ 99.5%

MDL NO:

MFCD00005593

Molecular Formula:

C₇H₆N₂S

Molecular Weight:

150.2

Specification Sheet SDS
4-Bromopyridine hydrochloride

Purity:

≥ 99% (HPLC)

Catalog Number:

28252

CAS Number:

19524-06-2

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00012828

Molecular Formula:

C₅H₄BrN·HCl

Molecular Weight:

194.46

Specification Sheet SDS
5-Methyl-2H-tetrazole

Purity:

≥ 99% (HPLC)

Catalog Number:

28154

CAS Number:

4076-36-2

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00185824

Molecular Formula:

C₂H₄N₄

Molecular Weight:

84.08

Specification Sheet SDS
4-Morpholinoaniline

Purity:

≥ 99% (GC)

Catalog Number:

28105

CAS Number:

2524-67-6

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00006169

Molecular Formula:

C₁₀H₁₄N₂O

Molecular Weight:

178.0

Specification Sheet SDS
3-Cyanocoumarin

Purity:

≥97% (GC)

Synonym:

Coumarin-3-carbonitrile

Catalog Number:

27915

CAS Number:

15119-34-3

Purity Limit:

≥97% (GC)

MDL NO:

MFCD00115699

Molecular Formula:

C₁₀H₅NO₂

Molecular Weight:

171.15

Specification Sheet SDS
1-Ethylpiperazine

Hazmat

Purity:

≥ 99.7%

Hazmat

Catalog Number:

27742

CAS Number:

5308-25-8

Purity Limit:

≥ 99.7%

MDL NO:

MFCD00059912

Molecular Formula:

C₆H₁₄N₂

Molecular Weight:

114.19

Specification Sheet SDS
2-Ethyl-4-methyl-1H-imidazole-1-propanenitrile

Purity:

≥ 95% (GC)

Synonym:

1-(2-Cyanoethyl)-2-ethyl-4-methylimidazole

Catalog Number:

27687

CAS Number:

23996-25-0

Purity Limit:

≥ 95% (GC)

MDL NO:

MFCD00051492

Molecular Formula:

C₉H₁₃N₃

Molecular Weight:

163.22

Specification Sheet SDS
2,5-Furandicarboxylic acid

Purity:

≥ 98% (Assay)

Catalog Number:

27410

CAS Number:

3238-40-2

Purity Limit:

≥ 98% (Assay)

MDL NO:

MFCD00016582

Molecular Formula:

C₆H₄O₅

Molecular Weight:

156.09

Specification Sheet SDS
2-Amino-1H-benzimidazole

Purity:

≥ 99% (HPLC)

Synonym:

2-Aminobenzimidazole

Catalog Number:

26960

CAS Number:

934-32-7

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00005596

Molecular Formula:

C₇H₇N₃

Molecular Weight:

133.15

Specification Sheet SDS
Gramine

Purity:

≥ 97% (HPLC)

Synonym:

3-(Dimethylaminomethyl)indole

Catalog Number:

26961

CAS Number:

87-52-5

Purity Limit:

≥ 97% (HPLC)

MDL NO:

MFCD00005629

Molecular Formula:

C₁₁H₁₄N₂

Molecular Weight:

174.25

Specification Sheet SDS
4-Methylthiazole

Hazmat

Purity:

≥ 99% (GC)

Synonym:

4-Methyl-1,3-thiazole

Hazmat

Catalog Number:

26939

CAS Number:

693-95-8

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005340

Molecular Formula:

C₄H₅NS

Molecular Weight:

99.16

Specification Sheet SDS
2-Methylimidazole

Hazmat

Purity:

≥ 99% (GC)

Synonym:

2-Methylglyoxaline

Hazmat

Catalog Number:

26928

CAS Number:

693-98-1

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005190

Molecular Formula:

C₄H₆N₂

Molecular Weight:

82.11

Specification Sheet SDS
1,3,4-Thiadiazole-2,5-dithiol

Hazmat

Purity:

≥ 98% (Assay by titration)

Synonym:

2,5-Dimercaptothiadiazole

Hazmat

Catalog Number:

26857

CAS Number:

1072-71-5

Purity Limit:

≥ 98% (Assay by titration)

MDL NO:

MFCD00003103

Molecular Formula:

C₂H₂N₂S₃

Molecular Weight:

150.25

Specification Sheet SDS
2-Methylpiperidine

Hazmat

Purity:

≥ 99% (GC)

Synonym:

2-Pipecoline

Hazmat

Catalog Number:

24503

CAS Number:

109-05-7

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005982

Molecular Formula:

C₆H₁₃N

Molecular Weight:

99.18

Specification Sheet SDS
2,4-Dichloropyrimidine

Purity:

≥ 99% (HPLC)

Catalog Number:

24507

CAS Number:

3934-20-1

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00006061

Molecular Formula:

C₄H₂Cl₂N₂

Molecular Weight:

148.98

Specification Sheet SDS
2,2,6,6-Tetramethylpiperidine

Hazmat

Purity:

≥ 99% (GC)

Synonym:

Norpempidine

Hazmat

Catalog Number:

24504

CAS Number:

768-66-1

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005985

Molecular Formula:

C₉H₁₉N

Molecular Weight:

141.26

Specification Sheet SDS
1-(Trimethylsilyl)imidazole

Purity:

≥ 98% (GC)

Synonym:

N-Trimethylsilylimidazole

Catalog Number:

24490

CAS Number:

18156-74-6

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00005280

Molecular Formula:

C₆H₁₂N₂Si

Molecular Weight:

140.26

Specification Sheet SDS
Methyl indole-4-carboxylate

Purity:

≥ 98% (HPLC)

Synonym:

1H-Indole-4-carboxylic acid methyl ester

Catalog Number:

21954

CAS Number:

39830-66-5

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00191222

Molecular Formula:

C₁₀H₉NO₂

Molecular Weight:

175.19

Specification Sheet SDS
2,3-Dimethylindole

Purity:

≥ 98% (HPLC)

Synonym:

2,3-Dimethyl-1H-indole

Catalog Number:

22059

CAS Number:

91-55-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00005617

Molecular Formula:

C₁₀H₁₁N

Molecular Weight:

145.2

Specification Sheet SDS
2,3,3-Trimethylindolenine

Purity:

≥ 99% (GC)

Synonym:

2,3,3-Trimethyl-3H-indole

Catalog Number:

22011

CAS Number:

1640-39-7

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005724

Molecular Formula:

C₁₁H₁₃N

Molecular Weight:

159.23

Specification Sheet SDS
1,3-Propanesultone

Hazmat

Purity:

≥ 99% (GC)

Synonym:

1,2-Oxathiolane, 2,2-dioxide

Hazmat

Catalog Number:

22005

CAS Number:

1120-71-4

Purity Limit:

≥ 99% (GC)

MDL NO:

MFCD00005355

Molecular Formula:

C₃H₆O₃S

Molecular Weight:

122.14

Specification Sheet SDS
Flavone

Purity:

≥ 99%

Synonym:

2-Phenyl-4H-1-benzopyran-4-one

Catalog Number:

21953

CAS Number:

525-82-6

Purity Limit:

≥ 99%

MDL NO:

MFCD00006825

Molecular Formula:

C₁₅H₁₀O₂

Molecular Weight:

222.24

Specification Sheet SDS
5-Benzyloxyindole

Purity:

≥ 99% (HPLC)

Synonym:

5-Benzyloxy-1H-indole

Catalog Number:

21882

CAS Number:

1215-59-4

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00005676

Molecular Formula:

C₁₅H₁₃NO

Molecular Weight:

223.27

Specification Sheet SDS
Umbelliferone

Purity:

98.5 - 101.5% (Assay by titration)

Synonym:

7-Hydroxycoumarin

Catalog Number:

21876

CAS Number:

93-35-6

Purity Limit:

98.5 - 101.5% (Assay by titration)

MDL NO:

MFCD00006878

Molecular Formula:

C₉H₆O₃

Molecular Weight:

162.14

Specification Sheet SDS

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