2-(methylthio)pyrimidine-4,6-diol 29639-68-7 4,6-Dihydroxy-2-methylthiopyrimidine A5506 CAS 29639-68-7
| CAS No. | 29639-68-7 |
| Molecular Formula | C5H6N2O2S |
| Molecular Weight | 158.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(methylthio)pyrimidine-4,6-diol 29639-68-7 4,6-Dihydroxy-2-methylthiopyrimidine A5506 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.
2-(methylthio)pyrimidine-4,6-diol 29639-68-7 4,6-Dihydroxy-2-methylthiopyrimidine A5506 (CAS 29639-68-7), molecular formula C5H6N2O2S and molecular weight 158.18 g/mol, is a CATO reference standard with documented purity and traceability.
2-(methylthio)pyrimidine-4,6-diol 29639-68-7 4,6-Dihydroxy-2-methylthiopyrimidine A5506 (C5H6N2O2S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C5H6N2O2S |
| Molecular Weight | 158.18 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Pyridine-3-sulfonamide (CAS 2922-45-4)
- Mirabegron Impurity 9 (CAS 29676-71-9)
- pyridine-2-sulfonic acid amide (CAS 63636-89-5)
- Acotiamide Impurity 21 (CAS 118452-04-3)
- 2-(3A-methyl-1,3-dioxo-1,3,3a,4,7,7a-hexahydro-2H-4,7-methanoisoindol-2-yl)acetic acid (CAS 1005134-08-6)
- 3-Iodo-1H-indazole-4-carbonitrile (CAS 944898-93-5)
- 3-(5-tert-Butyl-1,2,4-oxadiazol-3-yl)piperidine hydrochloride (CAS 1393330-46-5)
- 1-[3-(Methoxycarbonyl)benzyl]-azetidine-3-carboxylic acid (CAS 1984062-83-0)
- (4-Methoxy-2-nitrophenyl)methanol (CAS 22996-23-2)
- Ethyl(2,4,5-trimethylphenyl)sulfane (CAS 1314911-82-4)
- 3-Acetyl-5-iodobenzoic acid (CAS 1393557-43-1)
- 1-(Dichloromethyl)-2,3,4,5,6-pentafluoro-benzene (CAS 652-30-2)
- Rivaroxaban Impurity 47 (CAS 1082588-73-5)
- Semaglutide impurity 268 (CAS CATO-C4X-2226268)
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