Sodium 4,6-dihydroxypyrimidine-2-thiolate CAS 31645-12-2
| CAS No. | 31645-12-2 |
| Molecular Formula | C4H3N2NaO2S |
| Molecular Weight | 166.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Sodium 4,6-dihydroxypyrimidine-2-thiolate (CAS 31645-12-2), molecular formula C4H3N2NaO2S and molecular weight 166.13 g/mol, is a CATO reference standard with documented purity and traceability.
Sodium 4,6-dihydroxypyrimidine-2-thiolate (C4H3N2NaO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Sodium 4,6-dihydroxypyrimidine-2-thiolate 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 | C4H3N2NaO2S |
| Molecular Weight | 166.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- 5,5-Dihydroxypyrimidine-2,4,6(1H,3H,5H)-trione (CAS 3237-50-1)
- 4,6-Dihydroxypyrimidine-2-carboxylic Acid (CAS 5177-20-8)
- 5,6-Dihydroxypyrimidine-4-carboxylic acid (CAS 52412-10-9)
- ethyl 2,4-dihydroxypyrimidine-5-carboxylate (CAS CATO-C3D-262477)
- 4,6-Dihydroxypyrimidine-5-carbaldehyde (CAS 14256-99-6)
- 4,6-Dihydroxypyrimidine-5-carbonitrile (CAS 1936377-42-2)
- Butyl 2,6-dihydroxypyrimidine-4-carboxylate (CAS 22754-37-6)
- 4,6-Dihydroxypyrimidine (CAS 1193-24-4)
Recommended Standards
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- syn-3-Nitrobenzaldoxime (CAS 3717-30-4)
- 2-(3-Ethyl-1-methyl-1h-1,2,4-triazol-5-yl)aniline (CAS 1344234-55-4)
- tert-Butyl rel-((1R,2S)-2-phenylcyclopropyl)carbamate (CAS 56700-75-5)
- 5-(M-tolyl)-1H-1,2,4-triazole-3-thiol (CAS 75218-27-8)
- 3-(8-Methoxy-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)propan-1-amine (CAS 1000505-72-5)
- GR24 (CAS 76974-79-3)
- 6,6'-((2,3,5,6-Tetramethyl-1,4-phenylene)bis(methylene))bis(2-(tert-butyl)-4-methylphenol) (CAS 15459-04-8)
- 1-Bromo-3-chloro-5-propoxybenzene (CAS 1881329-59-4)
- Althiazide-d5 (CAS 1329837-71-9)
- 4-(3-Isopropyl-1,2,4-oxadiazol-5-yl)phenol (CAS 1189749-24-3)
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