6-amino-2-thioxo-2,5-dihydropyrimidin-4(3H)-one CAS 42985-76-2
| CAS No. | 42985-76-2 |
| Molecular Formula | C4H5N3OS |
| Molecular Weight | 143.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 143.17 g/mol gives 6-amino-2-thioxo-2,5-dihydropyrimidin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
6-amino-2-thioxo-2,5-dihydropyrimidin-4(3H)-one (CAS 42985-76-2), molecular formula C4H5N3OS and molecular weight 143.17 g/mol, is a CATO reference standard with documented purity and traceability.
6-amino-2-thioxo-2,5-dihydropyrimidin-4(3H)-one (C4H5N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; 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.
As a certified reference material (CRM), 6-amino-2-thioxo-2,5-dihydropyrimidin-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.
Physical & Chemical Properties
| Molecular Formula | C4H5N3OS |
| Molecular Weight | 143.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related amino Standards
- 4-Amino-2-thiouracil (CAS 1004-40-6)
- 6-Amino-4-hydroxy-2-mercaptopyrimidine (CAS 106651-79-0)
- 4-Amino-6-mercaptopyrimidin-2-ol (CAS 1073-82-1)
- 5-Amino-4-isothiazolecarboxamide (CAS 1421637-53-7)
- 5-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 155-14-6)
- 1-(5-Amino-1,2,4-thiadiazol-3-yl)ethanone (CAS 98259-38-2)
- 1-(5-Amino-1,3,4-thiadiazol-2-yl)ethanone (CAS 98259-37-1)
- 2-Amino-6-mercaptopyrimidin-4(1H)-one (CAS 6973-81-5)
Recommended Standards
- 5-Mercapto-1H-imidazole-4-carboxamide (CAS 54107-75-4)
- 6-methyl-3-thioxo-2H-1,2,4-triazin-5-one (CAS 615-76-9)
- 5-Aminothiazole-4-carboxamide (CAS 5539-46-8)
- 6-methyl-5-sulfanylidene-2,3,4,5-tetrahydro-1,2,4-triazin-3-one (CAS 98213-64-0)
- Methyl 3-[(3-chlorobenzoyl)amino]-3-(1-naphthyl)propanoate (CAS 439108-87-9)
- 5-((4-(Dipropylcarbamoyl)phenyl)amino)-5-oxopentanoic acid (CAS 940455-60-7)
- 6-Amino-3-tert-butyl-4-[4-(trifluoromethoxy)phenyl]-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile (CAS 625369-04-2)
- 2,4-Difluoro-3-(hydroxymethyl)phenol (CAS 866028-20-8)
- 4-(1,1-Difluoroethyl)-6-methoxypyrimidin-2-amine (CAS 2827059-43-6)
- 2-(4-Ethoxy-3-methoxyphenyl)acetonitrile (CAS 103796-52-7)
- 8-Chloro-3-nitro-6-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 1858241-44-7)
- (R)-5,6-dichloro-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 1241680-81-8)
- 6-Chloro-3-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazine-8-carboxylic acid HCl (CAS 1951444-55-5)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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