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Cefazolin impurity E
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Cefazolin impurity E

CAS: 29490-19-5

Ref. 3D-FC63655

1kg
436.00 €
2kg
647.00 €
5kg
986.00 €
250g
194.00 €
500g
310.00 €
Estimated delivery in United States, on Tuesday 18 Feb 2025

Product Information

Name:
Cefazolin impurity E
Synonyms:
  • 1,3,4-Thiadiazole-2(3H)-thione, 5-methyl-
  • 2-Methyl-1,3,4-thiadiazol-5-thiol
  • 2-Methyl-1,3,4-thiadiazole-5-thiol
  • 2-Methyl-1,3,4-thiadiazoline-5-thione
  • 2-Methyl-5-Mercapto Thiadiazole(Mmtd)
  • 2-Methyl-5-mercapto-1,3,4-thiadiazole
  • 2-Methyl-5-mercaptothiadiazole
  • 5-Mercapto-2-methyl-1,3,4-thiadiazole
  • 5-Methyl-1,3,4-thiadiazol-2-thiol
  • 5-Methyl-1,3,4-thiadiazole-2-thiol
  • See more synonyms
  • 5-Methyl-1,3,4-thiadiazole-2-thione
  • 5-Methyl-1,3,4-thiadiazole-5-thiol
  • 5-Methyl-1,3,4-thiadiazolyl-2-thiol
  • 5-Methyl-1,3,4-thiazole-2-thione
  • 5-Methyl-2-mercapto-1,3,4-thiadiazole
  • 5-Methyl-2-sulfanyl-1,3,4-thiadiazole
  • 5-Methyl-3H-1,3,4-thiadiazole-2-thione
  • 5-methyl-1,3,4-thiadiazole-2(3H)-thione
  • Mmtd
  • Thiadiazole
  • Δ<sup>2</sup>-1,3,4-Thiadiazoline-5-thione, 2-methyl-
  • Δ2-1,3,4-Thiadiazoline-5-thione, 2-methyl-
  • 2-Mercapto-5-methyl-1,3,4-thiadiazole
Description:

Cefazolin impurity E (CEF-E) is an impurity of the antibiotic cefazolin. It has been shown to have a redox potential and adsorption mechanism of -0.39 V and 0.14, respectively. CEF-E has been found in urine samples as a result of chemical interactions with nitrogen atoms in the urine. The binding constants for CEF-E are 1.7 x 10^10 M^(-1). The molecular weight of CEF-E is 289.2 g/mol and its nmr spectrum is characterized by peaks at 3.03 ppm and 4.41 ppm, which correspond to C-H protons in the methylene side chain and N-H protons in the pyridine ring, respectively. CEF-E also binds to human liver cells with an inhibitory effect on chloride ion transport, which may be due to its ability to chelate chloride ions with its chelate ring structure.

Notice:
Our products are intended for lab use only. For any other use, please contact us.
Brand:
Biosynth
Long term storage:
Notes:

Chemical properties

Molecular weight:
132.21 g/mol
Formula:
C3H4N2S2
Purity:
Min. 95%
MDL:
Melting point:
Boiling point:
Flash point:
Density:
Concentration:
EINECS:
Merck:
HS code:

Hazard Info

UN Number:
EQ:
Class:
H Statements:
P Statements:
Forbidden to fly:
Hazard Info:
Packing Group:
LQ:

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