4-Methylumbelliferyl phosphate disodium salt

4-甲基伞形酮磷酸二钠盐

Also known as: 4-MUP, Disodium 4-methylumbelliferyl phosphate, 4-Methylumbelliferyl phosphate disodium salt trihydrate, Disodium 4-methyl-2-oxo-2H-chromen-7-yl phosphate, 2H-1-Benzopyran-2-one, 4-methyl-7-(phosphonooxy)-, sodium salt (1:2), EINECS 245-325-0, MFCD00037614, Sodium 4-methyl-2-oxo-2H-chromen-7-yl phosphate, disodium,(4-methyl-2-oxochromen-7-yl) phosphate

4-Methylumbelliferyl phosphate disodium salt (CAS 22919-26-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7Na2O6P and a molecular weight of 300.112 g/mol. It is also known as 4-MUP, Disodium 4-methylumbelliferyl phosphate and 4-Methylumbelliferyl phosphate disodium salt trihydrate. Key properties include a boiling point of 511.4ºC at 760 mmHg and a flash point of 263.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22919-26-2
Jingsj CID
J-46244-0
Molecular Formula
C10H7Na2O6P
Chinese Name
4-甲基伞形酮磷酸二钠盐
Molecular Weight
300.112 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point511.4ºC at 760 mmHg
Flash Point263.1ºC
Exact Mass299.977570
PSA112.44000
LogP2.44930
Vapor Pressure2.79E-11mmHg at 25°C

Activity & Biological Data

Additional Information[1]. Chambers JP, et al. Determination of serum acid phosphatase in Gaucher's disease using 4-methylumbelliferyl phosphate. Clin Chim Acta. 1977 Oct 1;80(1):67-77. [2]. Watanabe F, et al. The analysis of alkaline phosphatase isoenzyme using 4-methylumbelliferyl phosphate as substrate on a cellulose acetate membrane. Clin Chim Acta. 1979 Feb 1;91(3):273-6. [3]. Hao Chen, et al. Autonomic Molecular Transport for Ultrasensitive Surface-Enhanced Infrared Absorption Spectroscopy. ACS Appl. Polym. Mater. 2020, 2, 9, 3929-3935

Customs & Trade Information

HS Code2932209090
Summary2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Methylumbelliferyl phosphate disodium salt?

The CAS number of 4-Methylumbelliferyl phosphate disodium salt is 22919-26-2.

What are the molecular formula and molecular weight of 4-Methylumbelliferyl phosphate disodium salt?

4-Methylumbelliferyl phosphate disodium salt has molecular formula C10H7Na2O6P and molecular weight 300.112 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Methylumbelliferyl phosphate disodium salt (CAS 22919-26-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46244-0 (accessed 2026-10-28).

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