ARSI Canada

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Explore our comprehensive catalog of impurities, reference standards & specialty compounds tailored for pharmaceutical, biotechnology, and research applications. Each product is supplied with detailed specifications, including the CAS number, molecular formula, molecular weight, and nomenclature.

With high purity and reliable analytical data, our compounds support drug development, diagnostics, and academic research, ensuring accuracy and consistency in every project.

Nitrosamine

CAS

N/A

C20H16N4O6

2,9-Dinitroso Tadalafil Impurity 1

Weight

408.37

Impurities & Reference Standard

2-acetylhydrazine-1-carbodithioic acid, ammonia salt

CAS

N/A

C3H9N3OS2

2-acetylhydrazine-1-carbodithioic acid, ammonia salt

Weight

167.245

Impurities & Reference Standard

CAS

55817-29-3

C4H5NO2S

2-((cyanomethyl)thio)acetic acid

Weight

131.153

Impurities & Reference Standard

CAS

N/A

C3H4F2O2S

2-((difluoromethyl)thio)acetic acid

Weight

142.12447

Nitrosamine

CAS

6841-96-9, 31107-20-7

C8H18N2O2

2-Methyl-2-Nitrosopropane Dimer

Weight

174.24

Nitrosamine

CAS

364745-13-1

C8H4N2O3

2-Nitroso-isoindole-1,3-dione

Weight

176.13

Nitrosamine

CAS

N/A

C20H17N3O5

2-Nitroso Tadalafil Impurity 1

Weight

379.37

Impurities & Reference Standard

(6R,7R)-3-(acetoxymethyl)-7-formamido-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

27267-35-2

C11H12N2O6S

(6R,7R)-3-(acetoxymethyl)-7-formamido-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Weight

300.285

Impurities & Reference Standard

4-methoxybenzyl(6R,7R)-3-methyl-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

CAS

29126-11-2

C24H24N2O5S

4-methoxybenzyl(6R,7R)-3-methyl-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

Weight

452.525

Nitrosamine

CAS

1426174-36-8

C9H7D4N3O

(2S)-N'-Nitrosonornicotine-d4

Weight

181.23

Impurities & Reference Standard

3-(aminomethylene)-6-phenylpiperazine-2,5-dione

CAS

N/A

C11H11N3O2

3-(aminomethylene)-6-phenylpiperazine-2,5-dione

Weight

217.228

Impurities & Reference Standard

CAS

N/A

C5H6O2S

3-hydroxy-4-methylthiophen-2(5H)-one

Weight

130.161

Impurities & Reference Standard

CAS

N/A

C5H6O2S

3-hydroxy-4-methylthiophen-2(5H)-one

Weight

130.161

Impurities & Reference Standard

3-(hydroxymethylene)-6-phenylpiperazine-2,5-dione

CAS

N/A

C11H10N2O3

3-(hydroxymethylene)-6-phenylpiperazine-2,5-dione

Weight

218.212

Nitrosamine

CAS

85502-23-4

C4H8N2O2

3-(Methylnitrosoamino) Propanal

Weight

116.12

Nitrosamine

CAS

60153-49-3

C4H7N3O

3-(Methylnitrosoamino) Propanenitrile

Weight

113.12

Impurities & Reference Standard

CAS

N/A

C10H10N2O2

3-phenylpiperazine-2,5-dione

Weight

190.202

Impurities & Reference Standard

(6R,7R)-7-((R)-2-acetoxy-2-phenylacetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

36922-16-4

C20H20N6O6S2

(6R,7R)-7-((R)-2-acetoxy-2-phenylacetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Weight

504.536

Impurities & Reference Standard

(6R,7R)-3-[(acetyloxy)methyl]-7-[[(Z)-(furan-2-yl)(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

39685-31-9

(6R,7R)-3-[(acetyloxy)methyl]-7-[[(Z)-(furan-2-yl)(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Weight

Nitrosamine

CAS

N/A

C7H7N3O3

4-(1-Nitrosohydrazinyl) Benzoic Acid

Weight

181.15

Nitrosamine

4-Amino-1-Nitroso-1H-Imidazole-5-Carbonitrile

CAS

N/A

C4H3N5O

4-Amino-1-Nitroso-1H-Imidazole-5-Carbonitrile

Weight

137.1

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