Betamethasone sodium phosphate

倍他米松磷酸钠

Also known as: Betamethasone 21-phosphate disodium, Betamethasone 21-(dihydrogen phosphate) disodium salt, Betamethasone 21-disodium phosphate, Betamethasone disodium phosphate, Betamethasone 21-phosphate disodium salt, Disodium betamethasone 21-phosphate, Disodium (11β,16β)-9-fluoro-11,17-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-21-yl phosphate, 9a-fluoro-16b-methylprednisolone-21-(disodium phosphate), Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17-dihydroxy-16-methyl-21-(phosphonooxy)-, sodium salt, (11β,16β)- (1:2), MFCD00200361, UNII-7BK02SCL3W, Bentelan, Betnelan, Celestan, Durabetason

Betamethasone sodium phosphate (CAS 151-73-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H28FNa2O8P and a molecular weight of 516.405 g/mol. It is also known as Betamethasone 21-phosphate disodium, Betamethasone 21-(dihydrogen phosphate) disodium salt and Betamethasone 21-disodium phosphate. Key properties include a boiling point of 669.6ºC at 760 mmHg and a flash point of 358.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
151-73-5
Jingsj CID
J-1983602-9
Molecular Formula
C22H28FNa2O8P
Chinese Name
倍他米松磷酸钠
Molecular Weight
516.405 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point669.6ºC at 760 mmHg
Flash Point358.7ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Betamethasone sodium phosphate?

The CAS number of Betamethasone sodium phosphate is 151-73-5.

What are the molecular formula and molecular weight of Betamethasone sodium phosphate?

Betamethasone sodium phosphate has molecular formula C22H28FNa2O8P and molecular weight 516.405 g/mol.

Is Betamethasone sodium phosphate hazardous?

Betamethasone sodium phosphate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Betamethasone sodium phosphate (CAS 151-73-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1983602-9 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.