39365-88-3 Potash, sulfurated [USP] Thiosulfuric acid (H2S2O3), dipotassium salt, mixt. with potassium sulfide (K2(Sx)) Dipotassium thiosulfate mixture with potassium sulfide (K2Sx) Thiosulfuric acid, dipotassium salt, mixt. with potassium sulfide (K2Sx) Potash, sulfurated CAS 39365-88-3
| CAS No. | 39365-88-3 |
| Molecular Formula | O3S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 39365-88-3 Potash, sulfurated [USP] Thiosulfuric acid (H2S2O3), dipotassium salt, mixt. with potassium sulfide (K2(Sx)) Dipotassium thiosulfate mixture with potassium sulfide (K2Sx) Thiosulfuric acid, dipotassium salt, mixt. with potassium sulfide (K2Sx) Potash, sulfurated.
CATO supplies 39365-88-3 Potash, sulfurated [USP] Thiosulfuric acid (H2S2O3), dipotassium salt, mixt. with potassium sulfide (K2(Sx)) Dipotassium thiosulfate mixture with potassium sulfide (K2Sx) Thiosulfuric acid, dipotassium salt, mixt. with potassium sulfide (K2Sx) Potash, sulfurated (CAS 39365-88-3), a certified reference material (molecular formula O3S2K2SK, MW 261.47 g/mol) for analytical method development and quality control.
39365-88-3 Potash, sulfurated [USP] Thiosulfuric acid (H2S2O3), dipotassium salt, mixt. with potassium sulfide (K2(Sx)) Dipotassium thiosulfate mixture with potassium sulfide (K2Sx) Thiosulfuric acid, dipotassium salt, mixt. with potassium sulfide (K2Sx) Potash, sulfurated (O3S2K2SK) contains a sulfone group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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 | O3S2 K2S 2*K |
| Molecular Weight | 261.47 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.) | 1968 |
| Sulfur Atoms | 3 |
Recommended Standards
- 2-Chloro-3-fluoro-5-methylbenzaldehyde (CAS 1805225-87-9)
- 2,6-Diphenyl-4,4'-bipyridine (CAS 16208-83-6)
- N-(1H-Indol-4-ylmethyl)-N-(tetrahydrofuran-2-ylmethyl)amine (CAS 944897-13-6)
- Methyl 3-amino-5-(4-(tert-butyl)phenyl)thiophene-2-carboxylate (CAS 175201-46-4)
- 4-Cyclopropyl-1,1,1-trifluorobutan-2-one (CAS 1465042-44-7)
- 1-Chloro-4-(methoxymethyl)-2-nitrobenzene (CAS 118172-76-2)
- 8-[2-(Diphenylmethylidene)hydrazin-1-yl]quinoline (CAS 478258-18-3)
- (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-fluorophenyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-fluorophenyl)butyric acid (3S)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-fluorophenyl)butanoic acid 270062-83-4 Fmoc-(S)-3-Amino-4-(4-fluorophenyl)-butyric acid (CAS 270062-83-4)
- 5-{[(2-fluorophenyl)methyl]amino}-2,3-dihydro-1h-1,3-benzodiazol-2-one (CAS 876897-09-5)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
Why CATO?
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