6-Hydroxy-3-methyl-2-(methylthio)pyrimidin-4(3H)-one CAS 6945-56-8
| CAS No. | 6945-56-8 |
| Molecular Formula | C6H8N2O2S |
| Molecular Weight | 172.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6-Hydroxy-3-methyl-2-(methylthio)pyrimidin-4(3H)-one 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.
6-Hydroxy-3-methyl-2-(methylthio)pyrimidin-4(3H)-one (CAS 6945-56-8), molecular formula C6H8N2O2S and molecular weight 172.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H8N2O2S, 6-Hydroxy-3-methyl-2-(methylthio)pyrimidin-4(3H)-one contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O2S |
| Molecular Weight | 172.20 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
- 2-Hydroxy-2-(3-methylthiophen-2-yl)acetic acid (CAS 1248481-32-4)
- (R)-2-hydroxy-3-(thiophen-2-yl)propanoic acid (CAS 917247-81-5)
- 2-Hydroxy-2-(thiophen-2-yl)propanoic acid (CAS 54955-42-9)
- 2-Hydroxy-3-(thiophen-2-yl)propanoic acid (CAS 917247-87-1)
- 3-Hydroxy-3-(thiophen-2-yl)propanoic acid (CAS 26359-15-9)
- 6-Hydroxy-2-((methylthio)methyl)pyrimidin-4(3H)-one (CAS 86551-27-1)
- methyl 3-hydroxy-4-methylthiophene-2-carboxylate (CAS 32711-57-2)
- Methyl 3-hydroxy-5-methylthiophene-2-carboxylate (CAS 5556-22-9)
Recommended Standards
- 6-Methylpyridine-2-sulfonic acid amide (CAS 65938-76-3)
- 6-fluoroimidazo[1,2-a]pyridine-2-carbaldehyde (CAS 881841-32-3)
- 7-Thia-1,3-diazaspiro[4.4]nonane-2,4-dione (CAS 212710-51-5)
- 6-fluoro-1H-indazole-3-carbaldehyde (CAS 518987-33-2)
- 2,4-Dimethyloxazole-5-carbohydrazide (CAS 89598-65-2)
- 2-(3-hydroxyoxetan-3-yl)acetic acid (CAS 1520475-69-7)
- 3-amino-5-ethyl-1-methyl-2,3-dihydro-1H-indol-2-one hydrochloride (CAS 1443979-83-6)
- 3',5'-TIPS-N-Ac-Adenosine (CAS 828247-65-0)
- 1-Methyl-5-(trifluoromethyl)-1H-benzo[d]imidazol-7-amine (CAS 27205-07-8)
- tert-Butyl (1R,3R)-3-((tert-butyldimethylsilyl)oxy)-1-((tert-butylsulfinyl)amino)-8-azaspiro[4.5]decane-8-carboxylate (CAS 2409579-75-3)
- 3-(Chloromethyl)-1,1-dimethylcyclohexane (CAS 1415991-32-0)
- 4-Chloro-N-(2-(2-(furan-2-ylmethylene)hydrazinecarbonyl)phenyl)benzenesulfonamide (CAS 477733-10-1)
- (R)-1-(5-fluoro-2-methoxyphenyl)ethan-1-amine (CAS 35247-83-7)
- Cholecystokinin Octapeptide free acid (desulfated) (H-2075.0001) (CAS 103974-46-5)
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