Thiazolo[5,4-d]pyrimidin-2(1H)-one CAS 119681-93-5
| CAS No. | 119681-93-5 |
| Molecular Formula | C5H3N3OS |
| Molecular Weight | 153.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Thiazolo[5,4-d]pyrimidin-2(1H)-one (CAS 119681-93-5) is a high-purity analytical reference standard with the molecular formula C5H3N3OS and a molecular weight of 153.16 g/mol.
The molecular framework of Thiazolo[5,4-d]pyrimidin-2(1H)-one (C5H3N3OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures Thiazolo[5,4-d]pyrimidin-2(1H)-one 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.
Physical & Chemical Properties
| Molecular Formula | C5H3N3OS |
| Molecular Weight | 153.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thiazolo Standards
- Thiazolo[4,5-d]pyrimidin-7(6H)-one (CAS 1353101-44-6)
- Thiazolo[4,5-d]pyridazin-7(6H)-one (CAS 2138546-89-9)
- Thiazolo[5,4-d]pyrimidin-7-ol (CAS 5021-50-1)
- Thiazolo[4,5-b]pyrazin-2-amine (CAS 112342-71-9)
- Thiazolo[4,5-d]pyrimidin-2-amine (CAS 857970-35-5)
- Thiazolo[4,5-d]pyrimidin-7-amine (CAS 2168138-70-1)
- Thiazolo[5,4-d]pyrimidin-2-amine (CAS 920313-61-7)
- Thiazolo[5,4-d]pyrimidin-7-amine (CAS 2846-90-4)
Recommended Standards
- 2-(Methylsulfamoyl)acetic acid (CAS 1042583-72-1)
- 5-Cyanothiophene-3-carboxylic acid (CAS 1211589-12-6)
- 2-Fluoro-n-methylbenzamide (CAS 52833-63-3)
- 1-(5-Fluoropyrimidin-2-yl)cyclopropan-1-amine (CAS 1246740-90-8)
- N-(1H-Indol-6-ylmethyl)-2-methoxyethanamineoxalate (2:1) (CAS 312973-74-3)
- Z-N-Me-l-2-aminohexanoic acid (CAS 225386-32-3)
- [1-(5-Fluoropyridin-2-yl)cyclopropyl]methanamine (CAS 1402233-01-5)
- 2-(7-Methoxy-2-oxo-2H-chromen-4-yl)-N-methylacetamide (CAS 919861-05-5)
- 2-(2-(Phenylimino)-2,3-dihydrothiazol-4-yl)ethan-1-amine (CAS 124458-17-9)
- Bicyclo[3.2.1]Octan-1-ylmethanol (CAS 121455-32-1)
- 2-Cyano-3-(4-thiomethylphenyl)propiophenone (CAS 898780-87-5)
- 3-(4-Bromo-2-fluorophenyl)-1,1,1-trifluoropropan-2-ol (CAS 1340535-60-5)
- (R)-1-((Trifluoromethyl)sulfonyl)piperidin-3-amine (CAS 2166256-07-9)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com