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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.

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

CAS

947723-87-7

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

Weight

0
Impurities & Reference Standard
(R)-1-((isopropoxycarbonyl)oxy)ethyl (6R,7R)-7-((Z)-2-(2-formamidothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

CAS

96680-30-7
C22H27N5O10S2

(R)-1-((isopropoxycarbonyl)oxy)ethyl (6R,7R)-7-((Z)-2-(2-formamidothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

Weight

585.603
Impurities & Reference Standard
(6R,7R)-7-[[(E)-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

97164-56-2

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

CAS

97170-19-9

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

Weight

0
Impurities & Reference Standard
trans-cefuroxime (6R,7R)-3-[(carbamoyloxy)methyl]-7-[[(E)-(furan-2-yl)(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

97232-97-8

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

Weight

0
Impurities & Reference Standard
(6R,7R)-3-[(acetyloxy)methyl]-7-[[(E)-(furan-2-yl)(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

CAS

97232-98-9

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

Weight

0
Impurities & Reference Standard
bis(5-methyl-1,3,4-thiadiazol-2-yl)sulfane

CAS

N/A
C6H6N4S3

bis(5-methyl-1,3,4-thiadiazol-2-yl)sulfane

Weight

230.322
Impurities & Reference Standard
Cefepime Dimer G

CAS

N/A

Cefepime Dimer G

Weight

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

CAS

N/A
C8H10N2O4S

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

Weight

230.24
Nitrosamine
Di-N-Nitroso Chlorguanide

CAS

N/A
C11H14ClN7O2

Di-N-Nitroso Chlorguanide

Weight

311.73
Nitrosamine
Di-N-Nitroso Levofloxacin EP Impurity G

CAS

N/A
C16H16FN5O6

Di-N-Nitroso Levofloxacin EP Impurity G

Weight

393.33
Nitrosamine
Di-N-Nitroso Mirabegron

CAS

N/A
C21H22N6O4S

Di-N-Nitroso Mirabegron

Weight

454.51
Nitrosamine
Di-Nitroso Itopride Impurity 12

CAS

N/A
C19H22N4O6

Di-Nitroso Itopride Impurity 12

Weight

402.41
Nitrosamine
Di-Nitroso Tirofiban

CAS

N/A
C22H34N4O7S

Di-Nitroso Tirofiban

Weight

498.6
Impurities & Reference Standard
(E)-2-(furan-2-yl)-2-(methoxyimino)acetic acid

CAS

N/A
C7H7NO4

(E)-2-(furan-2-yl)-2-(methoxyimino)acetic acid

Weight

169.136
Impurities & Reference Standard
(E)-2-((N,N'-diisopropylcarbamimidoyl)thio)acetic acid

CAS

N/A
C9H18N2O2S

(E)-2-((N,N'-diisopropylcarbamimidoyl)thio)acetic acid

Weight

218.315
Nitrosamine
Ethyl 1-Nitroso-1H-1,2,3,4-tetraazole-5-Carboxylate

CAS

N/A
C4H5N5O3

Ethyl 1-Nitroso-1H-1,2,3,4-tetraazole-5-Carboxylate

Weight

171.12
Impurities & Reference Standard
hydrazinecarbodithioic acid

CAS

N/A
CH4N2S2

hydrazinecarbodithioic acid

Weight

108.177
Impurities & Reference Standard
Hydroxy-ethyl D-(-)-4-Hydroxyphenylglycinate

CAS

N/A

Hydroxy-ethyl D-(-)-4-Hydroxyphenylglycinate

Weight

0
Impurities & Reference Standard
methyl 2-(2-amino-2-phenylacetamido)-2-phenylacetate

CAS

N/A
C17H18N2O3

methyl 2-(2-amino-2-phenylacetamido)-2-phenylacetate

Weight

298.342
Nitrosamine
Methyl N-Methyl-N-Nitrosoanthranilate

CAS

68061-82-5
C9H10N2O3

Methyl N-Methyl-N-Nitrosoanthranilate

Weight

194.19
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