Tetrasodium pyrophosphate CAS 7722-88-5
| CAS No. | 7722-88-5 |
| Molecular Formula | O7P2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tetrasodium pyrophosphate (CAS 7722-88-5), molecular formula O7P2Na and molecular weight 196.93 g/mol, is a CATO reference standard with documented purity and traceability.
Tetrasodium pyrophosphate (O7P2Na) contains a phosphate ester group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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 manufactures Tetrasodium pyrophosphate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | O7P2 4*Na |
| Molecular Weight | 196.93 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.) | 1959 |
Related Tetrasodium Standards
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Recommended Standards
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- Ethyl 7-(thiophen-3-yl)heptanoate (CAS 142422-84-2)
- (S)-2-Amino-3-guanidinopropanoic acid dihydrochloride (CAS 2216751-08-3)
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- 2-Cyclopropyl-N-(piperidin-3-yl)acetamide (CAS 1249947-34-9)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com