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. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. 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
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 669.6ºC at 760 mmHg |
|---|---|
| Flash Point | 358.7ºC |
| Exact Mass | 516.130127 |
| PSA | 156.83000 |
| LogP | 2.88910 |
| Vapor Pressure | 8.62E-21mmHg at 25°C |
| Additional Property | Freely soluble in water, slightly soluble in ethanol (96 per cent), practically insoluble in methylene chloride. |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Activity & Biological Data
| Additional Information | [1]. Wang L, et al. Determination of betamethasone disodium phosphate in the in vitro media of PLGA microspheres by high-performance liquid chromatography. J Pharm Biomed Anal. 2002;28(3-4):629-635. |
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Customs & Trade Information
| HS Code | 2937229000 |
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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 and hazard statements H302 — Harmful if swallowed.
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 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.