2-Mercaptopyrimidine-4,6-diol CAS 956086-95-6
| CAS No. | 956086-95-6 |
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| 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 2-Mercaptopyrimidine-4,6-diol.
CATO supplies 2-Mercaptopyrimidine-4,6-diol (CAS 956086-95-6), a certified reference material (molecular formula C4H4N2O2S, MW 144.15 g/mol) for analytical method development and quality control.
2-Mercaptopyrimidine-4,6-diol (C4H4N2O2S) 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).
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 | C4H4N2O2S |
| Molecular Weight | 144.15 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.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Mercaptopyrimidine Standards
Recommended Standards
- 2-Mercapto-1H-imidazole-5-carboxylic acid (CAS 25271-85-6)
- 2-Nitrothiophen-3-amine (CAS 52003-20-0)
- 2-Aminothiazole-5-carboxylic Acid (CAS 40283-46-3)
- 3-Amino-4-isothiazolecarboxylic Acid (CAS 920459-08-1)
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- N,N-dimethyl-5-nitro-1H-pyrazole-3-carboxamide (CAS 512188-06-6)
- Diethyl 5-hydroxy-4-(trifluoromethyl)isophthalate (CAS 1956332-00-5)
- Pyridin-3-ylmethyl carbonochloridate (CAS 84264-04-0)
- 3-(4-piperidyl)propanal (CAS 15848-31-4)
- 5-Bromo-2-(tert-butyl)-1H-indole-3-carbaldehyde (CAS 587828-65-7)
- 1-(1-Phenylvinyl)-1H-benzo[d][1,2,3]triazole (CAS 23269-74-1)
- 2-(Aminomethyl)-3-(difluoromethyl)-5-fluoropyridine-6-carboxylic acid (CAS 1805996-30-8)
- Fexofenadine EP Impurity E (CAS 115-46-8)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
Why CATO?
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