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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
1-Nitrosopyrrolopiperidine

CAS

N/A
C7H9N3O

1-Nitrosopyrrolopiperidine

Weight

151.17
Impurities & Reference Standard
(6R,7S)-7-amino-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

108260-07-7
C7H7ClN2O3S

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

Weight

234.66008
Impurities & Reference Standard
(6R,7S)-7-[[(Z)-2-(2-aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

108691-83-4

(6R,7S)-7-[[(Z)-2-(2-aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Weight

453.444
Impurities & Reference Standard
(6R,7S)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-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

126747-52-2
C16H17N9O5S3

(6R,7S)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-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

511.55
Impurities & Reference Standard
(7R)-7-(2-(1H-tetrazol-1-yl)acetamido)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

1322626-65-2

(7R)-7-(2-(1H-tetrazol-1-yl)acetamido)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Weight

0
Impurities & Reference Standard
2-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-2-((2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetic acid

CAS

1335475-08-5

2-((Z)-2-(2-aminothiazol-4-yl)-2-((carboxymethoxy)imino)acetamido)-2-((2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetic acid

Weight

0
Impurities & Reference Standard
2-[[[(Z)-1-(2-aminothiazol-4-yl)-2-[[[(2R,5RS)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]methyl]amino]-2-oxoethylidene]amino]oxy]acetic acid

CAS

1335475-19-8

2-[[[(Z)-1-(2-aminothiazol-4-yl)-2-[[[(2R,5RS)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]methyl]amino]-2-oxoethylidene]amino]oxy]acetic acid

Weight

0
Impurities & Reference Standard
(6R,7R)-(pivaloyloxy)methyl 7-((E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

CAS

138514-32-6

(6R,7R)-(pivaloyloxy)methyl 7-((E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

Weight

0
Impurities & Reference Standard
2-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-2-(5-((Z)-2-(4-methylthiazol-5-yl)vinyl)-4-(((pivaloyloxy)methoxy)carbonyl)-3,6-dihydro-2H-1,3-thiazin-2-yl)acetic acid

CAS

138514-32-6

2-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-2-(5-((Z)-2-(4-methylthiazol-5-yl)vinyl)-4-(((pivaloyloxy)methoxy)carbonyl)-3,6-dihydro-2H-1,3-thiazin-2-yl)acetic acid

Weight

0
Impurities & Reference Standard
(6R,7R)-7-((S)-2-amino-2-phenylacetamido)-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

143059-69-2
C15H14ClN3O4S

(6R,7R)-7-((S)-2-amino-2-phenylacetamido)-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Weight

367.804
Impurities & Reference Standard
(6R,7R)-(pivaloyloxy)methyl 7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylate

CAS

148774-47-4

(6R,7R)-(pivaloyloxy)methyl 7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylate

Weight

0
Impurities & Reference Standard
(5aR,6R)-6-amino-5a,6-dihydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione

CAS

184696-69-3
C8H8N2O3S

(5aR,6R)-6-amino-5a,6-dihydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione

Weight

212.223
Impurities & Reference Standard
(6R,7R)-3-(acetoxymethyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid

CAS

18884-65-6
C10H12N2O5S

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

Weight

0
Impurities & Reference Standard
2-[[(2R)-2-amino-2-phenylacetyl]amino]-2-(5-chloro-4-oxo-3,4-dihydro-2H-1,3-thiazin-2-yl)acetic acid

CAS

188915-50-6
C14H14ClN3O4S

2-[[(2R)-2-amino-2-phenylacetyl]amino]-2-(5-chloro-4-oxo-3,4-dihydro-2H-1,3-thiazin-2-yl)acetic acid

Weight

355.0394
Impurities & Reference Standard
2-((1-methyl-1H-tetrazol-5-yl)thio)acetic acid

CAS

N/A
C4H6N4O2S

2-((1-methyl-1H-tetrazol-5-yl)thio)acetic acid

Weight

174.178
Impurities & Reference Standard
2-(1H-tetrazol-1-yl)acetic acid

CAS

21732-17-2
C3H4N4O2

2-(1H-tetrazol-1-yl)acetic acid

Weight

128.091
Nitrosamine
2,2,5-Trimethyl-3-Nitrosooxazolidine

CAS

77400-46-5
C6H12N2O2

2,2,5-Trimethyl-3-Nitrosooxazolidine

Weight

144.17
Impurities & Reference Standard
2-(2-aminothiazol-4-yl)-2-oxoacetic acid

CAS

N/A
C5H4N2O3S

2-(2-aminothiazol-4-yl)-2-oxoacetic acid

Weight

172.158
Nitrosamine
N-Nitroso-2-Methylthiazolidine-4-Carboxylic Acid

CAS

103659-08-1
C5H8N2O3S

N-Nitroso-2-Methylthiazolidine-4-Carboxylic Acid

Weight

176.19
Impurities & Reference Standard
2-(5-benzyl-3,6-dioxopiperazin-2-yl)acetic acid

CAS

1228222
C13H14N2O4

2-(5-benzyl-3,6-dioxopiperazin-2-yl)acetic acid

Weight

262.265
Impurities & Reference Standard
2-(5-mercapto-1H-tetrazol-1-yl)ethanol

CAS

N/A
C3H6N4OS

2-(5-mercapto-1H-tetrazol-1-yl)ethanol

Weight

146.17094
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