3-Thiophenemalonic acid

Classification: Pharmaceutical Intermediates

Cas NO.: 21080-92-2

Molecular Formula: C7H6O4S

Melting Point: 139-142℃

Boiling Point: 396.8 oC at 760 mmHg

Stability: Stable under normal temperatures and pressures.

Refractive index:1.627?

Flash Point: 193.8 oC

Purity: 99%

Appearance: white to off-white crystalline powder

usage: intermediate of Cefpirome sulfate

Brand Name: HRD

EINECS: 244-198-9

Aliase: 3-Thiophenemalonic acid

Purity: 99%

Appearance:white powder

Brand: HRD

intermediate of Cefpirome sulf: intermediate of Cefpirome sulfate

Packaging & Delivery

Packaging Detail: 25kg per drum or as per the requirment of customer

Delivery Detail: 5 days for ready stock, 3 weeks for order.

Detailed Description

Appearance

White or off-white crystalline powder

White crystalline powder

Water

                                              ≤1.0%

0.31%

               Purity (HPLC)

99.0%

99.86%

   Total impurities(HPLC)

                                  Not more than 2.0%

0.16%

Assay(HPLC))

≥99.0%

(Calculated on anhydrous substance)

99.54%

Residual solvents

                           tert-butyl methyl ether  ≤0.5%

0.11%