X69NU20D19 7790-76-3 Calcium Pyrophosphate Calcium diphosphate Diphosphoric acid, calcium salt (1:2) Dicalcium pyrophosphate, with a fluorine content of less than 0,005 % by weight on the dry anhydrous product Dicalcium pyrophosphate Calcium phosphate (Ca2P2O7) alpha-Calcium pyrophosphate Calcium pyrophosphate (Ca2P2O7) Dicalcium diphosphate EINECS 232-221-5 HSDB 1435 Pyrophosphoric acid, calcium salt (1:2) UNII-X69NU20D19 EC 232-221-5 CAS 7790-76-3
| CAS No. | 7790-76-3 |
| Molecular Formula | O7P2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a phosphate ester group, X69NU20D19 7790-76-3 Calcium Pyrophosphate Calcium diphosphate Diphosphoric acid, calcium salt (1:2) Dicalcium pyrophosphate, with a fluorine content of less than 0,005 % by weight on the dry anhydrous product Dicalcium pyrophosphate Calcium phosphate (Ca2P2O7) alpha-Calcium pyrophosphate Calcium pyrophosphate (Ca2P2O7) Dicalcium diphosphate EINECS 232-221-5 HSDB 1435 Pyrophosphoric acid, calcium salt (1:2) UNII-X69NU20D19 EC 232-221-5 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.03 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
X69NU20D19 7790-76-3 Calcium Pyrophosphate Calcium diphosphate Diphosphoric acid, calcium salt (1:2) Dicalcium pyrophosphate, with a fluorine content of less than 0,005 % by weight on the dry anhydrous product Dicalcium pyrophosphate Calcium phosphate (Ca2P2O7) alpha-Calcium pyrophosphate Calcium pyrophosphate (Ca2P2O7) Dicalcium diphosphate EINECS 232-221-5 HSDB 1435 Pyrophosphoric acid, calcium salt (1:2) UNII-X69NU20D19 EC 232-221-5 (CAS 7790-76-3), molecular formula O7P2CaH2O and molecular weight 232.03 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | O7P2 2*Ca H2O |
| Molecular Weight | 232.03 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1959 |
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