Skip to main content

7-Aminodesacetoxycephalosporanic acid

Also known as: 7-ADCA, 7-Amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, (6R,7R)-7-Amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7β-aminodeacetoxycephalosporanic acid, Cefalexin EP Impurity B, Cefadroxil EP Impurity B, Cephalexin EP Impurity B, 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-amino-3-methyl-8-oxo-, (6R,7R)-

7-Aminodesacetoxycephalosporanic acid (CAS 22252-43-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H10N2O3S and a molecular weight of 214.242 g/mol. Key properties include a melting point of 234ºC (dec.), a boiling point of 517.6±50.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 266.8±30.1 °C. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22252-43-3
Jingsj CID
J-25680-4
Molecular Formula
C8H10N2O3S
Molecular Weight
214.242 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point234ºC (dec.)
Boiling Point517.6±50.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point266.8±30.1 °C
Exact Mass214.041214
PSA108.93000
LogP-0.81
Vapor Pressure0.0±2.9 mmHg at 25°C
Refractive Index1.698
Storage Conditions2-8℃

GHS Safety & Compliance

Health HazardSignal word: Danger
  • H317 — May cause an allergic skin reaction
  • H334 — May cause allergy or asthma symptoms if inhaled

Activity & Biological Data

Additional Information[1]. Linda G Otten, et al. Mutational Analysis of a Key Residue in the Substrate Specificity of a Cephalosporin Acylase. Chembiochem. 2004 Jun 7;5(6):820-5.

Frequently Asked Questions

What is the CAS number of 7-Aminodesacetoxycephalosporanic acid?

The CAS number of 7-Aminodesacetoxycephalosporanic acid is 22252-43-3.

What are the molecular formula and molecular weight of 7-Aminodesacetoxycephalosporanic acid?

7-Aminodesacetoxycephalosporanic acid has molecular formula C8H10N2O3S and molecular weight 214.242 g/mol.

Is 7-Aminodesacetoxycephalosporanic acid hazardous?

7-Aminodesacetoxycephalosporanic acid has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H334 — May cause allergy or asthma symptoms if inhaled.

What are the upstream and downstream products of 7-Aminodesacetoxycephalosporanic acid?

For 7-Aminodesacetoxycephalosporanic acid, Downstream Products: Cefadroxil, 2-Mercaptobenzothiazole, Cefetamet.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "7-Aminodesacetoxycephalosporanic acid (CAS 22252-43-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25680-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.