Sodium dihydrogen phosphate
Also known as: Monosodium phosphate, Sodium phosphate monobasic, Sodium biphosphate, Acid sodium phosphate, Primary sodium phosphate, MSP, Sodium dihydrogen phosphate anhydrous
Sodium dihydrogen phosphate (CAS 7558-80-7) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H2NaO4P and a molecular weight of 119.98 g/mol. Key properties include a melting point of <0ºC, a boiling point of 100°C and a density of 1.40 g/mL at 20 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Nov 3, 2026.
- CAS No.
- 7558-80-7
- Jingsj CID
- J-35919-3
- Molecular Formula
- H2NaO4P
- Molecular Weight
- 119.98 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | <0ºC |
|---|---|
| Boiling Point | 100°C |
| Density | 1.40 g/mL at 20 °C |
| Exact Mass | 119.958839 |
| PSA | 90.40000 |
| Additional Property | H2O: 5 M, clear, colorless |
Activity & Biological Data
| Additional Information | [1]. Kumar H, et al. Investigations on solute–solvent interactions of amino acids in aqueous solutions of sodium dihydrogen phosphate at different temperatures[J]. Monatshefte für Chemie-Chemical Monthly, 2014, 145: 1063-1082. [2]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99. |
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Customs & Trade Information
| HS Code | 2835220000 |
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Frequently Asked Questions
What is the CAS number of Sodium dihydrogen phosphate?
The CAS number of Sodium dihydrogen phosphate is 7558-80-7.
What are the molecular formula and molecular weight of Sodium dihydrogen phosphate?
Sodium dihydrogen phosphate has molecular formula H2NaO4P and molecular weight 119.98 g/mol.
Which suppliers offer Sodium dihydrogen phosphate?
1 supplier(s) listed; request a quote for pricing.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sodium dihydrogen phosphate (CAS 7558-80-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35919-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.