Calcium dihydrogen phosphate hydrate CAS 301524-28-7
| CAS No. | 301524-28-7 |
| Molecular Formula | H3O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Calcium dihydrogen phosphate hydrate (CAS 301524-28-7), a certified reference material (molecular formula H3O4PCaH2O, MW 156.09 g/mol) for analytical method development and quality control.
Structurally, Calcium dihydrogen phosphate hydrate (H3O4PCaH2O) contains a phosphate ester group. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 156.09 g/mol, it falls into the medium-molecular-weight range.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | H3O4P Ca H2O |
| Molecular Weight | 156.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 2025 |
Related Calcium Standards
- Dihydrogen hexachloroiridate(IV) hydrate (CAS 1252590-17-2)
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- Zinc dihydrogen phosphate (CAS 13598-37-3)
- Potassium dihydrogen phosphite (CAS 13977-65-6)
- Dihydrogen hexachloroosmate(IV) hexahydrate (CAS 27057-71-2)
- 287488-11-3 Ammonium dihydrogen phosphate-15N MFCD00084194 (CAS 287488-11-3)
- phenyl dihydrogen phosphite (CAS 3486-75-7)
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