7-(Chloromethyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one CAS 87572-02-9
| CAS No. | 87572-02-9 |
| Molecular Formula | C6H4ClN3OS |
| Molecular Weight | 201.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-(Chloromethyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one is closely related to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 7-(Chloromethyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (CAS 87572-02-9), a certified reference material (molecular formula C6H4ClN3OS, MW 201.63 g/mol) for analytical method development and quality control.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 7-(Chloromethyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
As a certified reference material (CRM), 7-(Chloromethyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-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 | C6H4ClN3OS |
| Molecular Weight | 201.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloromethyl Standards
- N-(3-(Chloromethyl)-5-fluorophenyl)acetamide (CAS 1393534-36-5)
- 5-(Chloromethyl)-3-(1,3-thiazol-2-yl)-1,2,4-oxadiazole (CAS 951123-18-5)
- 3-(chloromethyl)-5-(trifluoromethyl)pyridine (CAS 1060801-94-6)
- 1-(Chloromethyl)-2-methoxy-4-nitrobenzene (CAS 101080-01-7)
- 1-(Chloromethyl)-3-methoxy-5-nitrobenzene (CAS 1261854-28-7)
- α-Chloromethyl-4-nitrobenzenemethanol (CAS 13407-16-4)
- Methyl 4-(chloromethyl)-6-hydroxypicolinate (CAS 1393541-10-0)
- 1-(Chloromethyl)-2-methoxy-3-nitrobenzene (CAS 256455-93-3)
Recommended Standards
- 6-Oxo-4H-thieno[2,3-c]pyrrole-5(6H)-carbonyl chloride (CAS 79472-38-1)
- n-(2-Chloro-4-fluorophenyl)propionamide (CAS 930556-34-6)
- Tizanidine Impurity 56 (CAS CATO-C4X-144556)
- 4-Cyanobenzenesulfonyl Chloride (CAS 49584-26-1)
- 2-(Benzyloxy)-6-chloronaphthalene (CAS 1881290-93-2)
- 4-(Methylthio)benzo[d][1,2,3]triazine (CAS 22305-56-2)
- Thiophene-2-carbonyl isocyanate (CAS 4753-94-0)
- Tert-butyl prolinate hydrochloride (CAS 256478-96-3)
- 2-Chloro-N-(2,4,5-trichlorophenyl)propanamide (CAS 379254-97-4)
- 2-(Naphthalen-2-yl)acetonitrile (CAS 7498-57-9)
- 2-Chloro-6-methylimidazo[1,2-b]pyridazine (CAS 127566-20-5)
- N-(4-Methoxybenzyl)-3-nitro-N-(4-nitrophenyl)benzamide (CAS 332385-03-2)
- 3-Fluoro-4-(trifluoromethyl)-2-pyridinamine (CAS 1227514-27-3)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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