30246-33-4

30246-33-4 structure

Name: 7-TDA
Chemical Name: 7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)thiomethyl]cephalosphoranic acid
CAS Number: 30246-33-4
Molecular Formula: C₁₁H₁₂N₄O₃S₃
Molecular Weight: 344.433
Create Date: 2019-02-15 18:11:41
Modify Date: 2026-07-12 20:31:43

Name	7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)thiomethyl]cephalosphoranic acid
Synonyms	Cefazolin Impurity -A (6R,7R)-7-amino-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylic acid (6R,7R)-7-amino-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylic acid (6R)-7α-Amino-3-(5-methyl-1,3,4-thiadiazol-2-ylthiomethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylic acid 7-AMINO-3-[(5-METHYL-1,3,4-THIADIAZOL-2-YL)THIOMETHYL]CHALOSPHORANIC ACID (7r)-7-amino-3[(5-methyl-1,3,4-thiadiazole-2-yl)thiomethyl]-3-chem-4-cboxylic acid (7r)-7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)thiomethyl]-3-chem-4-cboxylicacid 7-ammonio-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylate 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylicacid, 7-amino-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)thio]methyl]-8-oxo-, (6R,7R) Cefazolin EP Impurity A 7-Amino-3-[(2-methyl-1,3,4-thiadiazol-5-ylthio)methyl]-3-chem-4-cboxylic acid Cefazolin Impurity A (6R)-7t-amino-3-(5-methyl-[1,3,4]thiadiazol-2-ylsulfanylmethyl)-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R-trans)-7-amino-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 TDA Pent nucleus of cefazedone (7-TDA) 3,5-Dichloro-4-hydroxypyridine，7-Amino-3-[(5-methyl-1,3,4-thiadiazol- 2-ylthio)methyl]-3-chem-4- cboxylic Acid Cefazolin Impurity K 3-[(2-methyl-1,3,4-thiadiazol-5-ylthio)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (7r)-7-amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)thiomethyl]-3-cephem-4-carboxylicacid (6R-trans)-7-amino-3-[[(5-Methyl-1,3,4-thiadiazol-2-yl)thio]Methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylic acid Cefazolin Impurity 7(Cefazolin Impurity A) (7r)-7-amino-3[(5-methyl-1,3,4-thiadiazole-2-yl)thiomethyl]-3-cephem-4-carboxylic acid 7-amino-3-(5-methyl-1,3,4-thiadiazol-2-yl)thiomethyl-3-cephem-4-carboxylic acid (6R-trans)-7-amino-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)thio] (7R)-7-Amino-3-{[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 3-[[(5-Methyl-1,3,4-thiadiazole-2-yl)thio]methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-7-Amino-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylic acid (Cefazolin Impurity) 7-amino-3-(5'-methyl-1',3',4'-thiadiazol-2'-ylthiomethyl)cephalosporanic acid TIANFU-CHEM - 7-AMINO-3-[(5-METHYL-1,3,4-THIADIAZOL-2-YL)THIOMETHYL]CHALOSPHORANIC ACID Cefazolin Impurity 7 CRS（Cefazolin Impurity A CRS） 7-Amino-3-[[(5-methyl-1,3,4-thiadiazol-2yl)thiomethyl]-3-chalosporanicacid 7-Amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)-thiomethyl]-cephalosporanic aci 7-Amino-3-([5-methyl-1,3,4-thiadiazol-2-yl] thiomethyl)-3-chem-4-cboxylic acid Cefuroxime nucleus (7-TDA) Cefazolin Sodium Impurity A 7-Amino-3-[(5-methyl-1,3,4-thiadiazol-2-yl)-thiomethyl]-chalosporanic aci

Density	1.7±0.1 g/cm3
Boiling Point	678.2±65.0 °C at 760 mmHg
Molecular Formula	C₁₁H₁₂N₄O₃S₃
Molecular Weight	344.433
Flash Point	364.0±34.3 °C
Exact Mass	344.007141
PSA	188.25000
LogP	0.42
Vapour Pressure	0.0±2.2 mmHg at 25°C
Index of Refraction	1.769