Heterocyclic Building Blocks

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5,7-Diiodo-8-hydroxyquinoline

Grade:

meets USP specification

Purity:

96.0 - 100.5% (Assay by titration)

Synonym:

5,7-Diiodooxine

Catalog Number:

44903

Grade:

meets USP specification

CAS Number:

83-73-8

Purity Limit:

96.0 - 100.5% (Assay by titration)

MDL NO:

MFCD00006789

Molecular Formula:

C₉H₅I₂NO

Molecular Weight:

396.95

Specification Sheet SDS
5-Iodouracil

Purity:

≥ 98% (Assay)

Catalog Number:

44839

CAS Number:

696-07-1

Purity Limit:

≥ 98% (Assay)

MDL NO:

MFCD00006020

Molecular Formula:

C₄H₃IN₂O₂

Molecular Weight:

237.98

Specification Sheet SDS
5-Amino-4,6-dichloro-2-(propylthio)pyrimidine

Purity:

≥ 98% (GC)

Catalog Number:

44838

CAS Number:

145783-15-9

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD16875503

Molecular Formula:

C₇H₉Cl₂N₃S

Molecular Weight:

238.13

Specification Sheet SDS
4-Chloro-7-chlorosulfonyl-2,1,3-benzoxadiazole [Bifunctional Fluorescent Reagent]

Hazmat

Purity:

≥ 98% (HPLC)

Synonym:

4-Chloro-2,1,3-benzoxadiazole-7-sulfonyl chloride

Hazmat

Catalog Number:

44554

CAS Number:

142246-48-8

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00191405

Molecular Formula:

C₆H₂Cl₂N₂O₃S

Molecular Weight:

253.05

Specification Sheet SDS
8-Hydroxyquinoline-5-sulfonic acid monohydrate

Purity:

≥ 98% (HPLC)

Synonym:

Oxine-5-sulfonic acid monohydrate

Catalog Number:

43909

CAS Number:

283158-18-9

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00006795

Molecular Formula:

C₉H₇NO₄S·H₂O

Molecular Weight:

243.24

Specification Sheet SDS
1-(2-Aminoethyl)pyrrolidine

Hazmat

Purity:

≥ 98% (GC)

Hazmat

Catalog Number:

43832

CAS Number:

7154-73-6

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00003182

Molecular Formula:

C₆H₁₄N₂

Molecular Weight:

114.19

Specification Sheet SDS
4,6-Dimethoxy-2-(methylsulfonyl)pyrimidine

Purity:

≥ 98% (GC)

Catalog Number:

43704

CAS Number:

113583-35-0

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00672151

Molecular Formula:

C₇H₁₀N₂O₄S

Molecular Weight:

218.23

Specification Sheet SDS
2,6-Dimethyl-g-pyrone

Purity:

≥ 98% (GC)

Synonym:

2,6-Dimethyl-4H-pyran-4-one

Catalog Number:

43548

CAS Number:

1004-36-0

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00006579

Molecular Formula:

C₇H₈O₂

Molecular Weight:

124.14

Specification Sheet SDS
4-Piperidinemethanol

Hazmat

Purity:

≥ 97% (GC)

Synonym:

4-(Hydroxymethyl)piperidine

Hazmat

Catalog Number:

43479

CAS Number:

6457-49-4

Purity Limit:

≥ 97% (GC)

MDL NO:

MFCD00174228

Molecular Formula:

C₆H₁₃NO

Molecular Weight:

115.18

Specification Sheet SDS
Piperazine dihydrochloride monohydrate

Purity:

≥ 98%

Catalog Number:

43353

CAS Number:

142-64-3

Purity Limit:

≥ 98%

MDL NO:

MFCD00012754

Molecular Formula:

C₄H₁₀N₂·2HCl·H₂O

Molecular Weight:

177.07

Specification Sheet SDS
5,6,7,7a-Tetrahydrothieno[3,2-c]pyridin-2(4H)-one hydrochloride

Purity:

≥ 98% (HPLC)

Catalog Number:

43199

CAS Number:

115473-15-9

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD11111130

Molecular Formula:

C₇H₉NOS·HCl

Molecular Weight:

191.67

Specification Sheet SDS
1-Methyl-2-phenylindole

Purity:

≥ 99%

Catalog Number:

43003

CAS Number:

3558-24-5

Purity Limit:

≥ 99%

MDL NO:

MFCD00022892

Molecular Formula:

C₁₅H₁₃N

Molecular Weight:

207.28

Specification Sheet SDS
Tetrahydrofurfuryl alcohol

Purity:

≥ 98%

Synonym:

THFA

Catalog Number:

42871

CAS Number:

97-99-4

Purity Limit:

≥ 98%

MDL NO:

MFCD00005372

Molecular Formula:

C₅H₁₀O₂

Molecular Weight:

102.13

Specification Sheet SDS
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
Phenytoin

Purity:

98 - 102% (Assay)

Synonym:

5,5-Diphenylhydantoin

Catalog Number:

37776

CAS Number:

57-41-0

Purity Limit:

98 - 102% (Assay)

MDL NO:

MFCD00005264

Molecular Formula:

C₁₅H₁₂N₂O₂

Molecular Weight:

252.27

Specification Sheet SDS
3-Methyl-3-oxetanemethanol

Purity:

≥ 97% (NMR)

Synonym:

3-Hydroxymethyl-3-methyl-oxetane

Catalog Number:

37322

CAS Number:

3143-02-0

Purity Limit:

≥ 97% (NMR)

MDL NO:

MFCD00010273

Molecular Formula:

C₅H₁₀O₂

Molecular Weight:

102.13

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
DL-N-Acetylhomocysteine thiolactone

Hazmat

Purity:

≥ 99% (HPLC)

Synonym:

2-Acetamido-4-mercaptobutyric acid γ-thiolactone

Hazmat

Catalog Number:

37216

CAS Number:

1195-16-0

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00005480

Molecular Formula:

C₆H₉NO₂S

Molecular Weight:

159.2

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
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
4-Methylquinoline

Purity:

≥ 98% (Assay)

Synonym:

Lepidine

Catalog Number:

29989

CAS Number:

491-35-0

Purity Limit:

≥ 98% (Assay)

MDL NO:

MFCD00006784

Molecular Formula:

C₁₀H₉N

Molecular Weight:

143.19

Specification Sheet SDS
Furoin

Purity:

≥ 98% (GC)

Catalog Number:

29982

CAS Number:

552-86-3

Purity Limit:

≥ 98% (GC)

MDL NO:

MFCD00003246

Molecular Formula:

C₁₀H₈O₄

Molecular Weight:

192.17

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
5-Phenyl-2H-tetrazole

Purity:

≥ 98% (HPLC)

Catalog Number:

28506

CAS Number:

18039-42-4

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD01451271

Molecular Formula:

C₇H₆N₄

Molecular Weight:

146.15

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
4,6-Dihydroxypyrimidine

Purity:

≥ 99% (HPLC)

Synonym:

4,6-Pyrimidinediol

Catalog Number:

27415

CAS Number:

1193-24-4

Purity Limit:

≥ 99% (HPLC)

MDL NO:

MFCD00016733

Molecular Formula:

C₄H₄N₂O₂

Molecular Weight:

112.09

Specification Sheet SDS

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