7782-85-6 70WT22SF4B Sodium phosphate, dibasic, heptahydrate Phosphoric acid, disodium salt, heptahydrate Sodium monohydrogen phosphate heptahydrate (2:1:1:7) Disodium phosphate heptahydrate Sodium phosphate, diabasic, heptahydrate UNII-70WT22SF4B CAS 7782-85-6

Purity 97%+In StockPharmaceutical Standards
CAS No.7782-85-6
Molecular FormulaHO4P
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7782-85-6 70WT22SF4B Sodium phosphate, dibasic, heptahydrate Phosphoric acid, disodium salt, heptahydrate Sodium monohydrogen phosphate heptahydrate (2:1:1:7) Disodium phosphate heptahydrate Sodium phosphate, diabasic, heptahydrate UNII-70WT22SF4B CAS 7782-85-6 chemical structure

Description

The molecular framework of 7782-85-6 70WT22SF4B Sodium phosphate, dibasic, heptahydrate Phosphoric acid, disodium salt, heptahydrate Sodium monohydrogen phosphate heptahydrate (2:1:1:7) Disodium phosphate heptahydrate Sodium phosphate, diabasic, heptahydrate UNII-70WT22SF4B (HO4PNaH2O) is characterized by a phosphate ester group. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

7782-85-6 70WT22SF4B Sodium phosphate, dibasic, heptahydrate Phosphoric acid, disodium salt, heptahydrate Sodium monohydrogen phosphate heptahydrate (2:1:1:7) Disodium phosphate heptahydrate Sodium phosphate, diabasic, heptahydrate UNII-70WT22SF4B (CAS 7782-85-6), molecular formula HO4PNaH2O and molecular weight 136.98 g/mol, is a CATO reference standard with documented purity and traceability.

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 7782-85-6 70WT22SF4B Sodium phosphate, dibasic, heptahydrate Phosphoric acid, disodium salt, heptahydrate Sodium monohydrogen phosphate heptahydrate (2:1:1:7) Disodium phosphate heptahydrate Sodium phosphate, diabasic, heptahydrate UNII-70WT22SF4B 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 FormulaHO4P 2*Na 7*H2O
Molecular Weight136.98 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959

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