Phosphoric acid, monobutyl ester, potassium salt CAS 26290-70-0
| CAS No. | 26290-70-0 |
| Molecular Formula | C4H9O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Phosphoric acid, monobutyl ester, potassium salt (C4H9O4PK) is characterized by a carbohydrate-derived structure, 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.
Phosphoric acid, monobutyl ester, potassium salt (CAS 26290-70-0), molecular formula C4H9O4PK and molecular weight 191.18 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.
As a certified reference material (CRM), Phosphoric acid, monobutyl ester, potassium salt meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4H9O4P 2*K |
| Molecular Weight | 191.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1964 |
Related Phosphoric Standards
- Phosphoric acid, manganese salt (CAS 10124-54-6)
- Phosphoric acid, polymer with 2-(chloromethyl)oxirane, ethenylbenzene, 4,4'-(1-methylethylidene)bis[phenol] and 2-propen-1-ol (CAS 105598-74-1)
- Phosphoric acid-<SUP>17</SUP>O<SUB>4</SUB> solution (CAS 116374-21-1)
- Phosphoric Acid Tripropyl Ester-d21 (CAS 1219794-92-9)
- Phosphoric acid chloromethyl ester bis-(2-trimethylsilanyl-ethyl) ester (CAS 1234692-55-7)
- Phosphoric acid methyl ester (CAS 12789-45-6)
- Phosphoric Acid Trinonyl Ester (CAS 13018-37-6)
- Phosphoric acid, lanthanum(3+) salt (CAS 13778-59-1)
Recommended Standards
- 1,5-Dihydroxy-2-methoxyanthracene-9,10-dione (CAS 157029-68-0)
- 8-methoxy-2,3,4,5-tetrahydro-1,4-benzoxazepin-5-one (CAS 5755-00-0)
- Ethyl 4-methylbenzimidate (CAS 827-71-4)
- 1-(2-Methoxy-6-(trifluoromethyl)pyridin-4-yl)ethan-1-one (CAS 1393554-80-7)
- 2-((4-Amino-4H-1,2,4-triazol-3-yl)thio)acetonitrile (CAS 74599-36-3)
- 8-Bromo-1-methyl-6-(trifluoromethyl)quinoxaline-2,3(1H,4H)-dione (CAS 1864016-15-8)
- 2-Bromo-N-(4-fluorobenzyl)propanamide (CAS 1119451-51-2)
- 3-Amino-2,3-dihydrothiophene 1,1-dioxide (CAS 56275-95-7)
- 8-(Tert-butyl) 3-ethyl 8-azabicyclo[3.2.1]Octane-3,8-dicarboxylate (CAS 1246644-52-9)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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