6-Oxo-6,9-dihydro-1H-purine 3-oxide CAS 19765-65-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19765-65-2 |
| Molecular Formula | C5H4N4O2 |
| Molecular Weight | 152.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Oxo-6,9-dihydro-1H-purine 3-oxide (CAS 19765-65-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N4O2. Molecular weight: 152.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4N4O2 |
| Molecular Weight | 152.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
Related Oxo Standards
- 2,3-Dihydro-1-benzofuran-3,6-diol (CAS 1020947-92-5)
- 2,3-Dihydro-1,4-benzodioxin-5-ol (CAS 10288-36-5)
- 7,8-Dihydro-2H-pyrano[4,3-c]pyridazin-3(5H)-one (CAS 1075260-60-4)
- 6,7-Dihydro-5H-pyrrolo[2,1-c][1,2,4]triazole-3-carboxamide (CAS 108800-61-9)
- 5,6-Dihydro-4H-pyrrolo[1,2-b]pyrazole-6-carboxylic acid, 97% (CAS 1190392-24-5)
- 6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazine-3-carbaldehyde (CAS 1286753-86-3)
- 4-Methyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5(4H)-one (CAS 135376-98-6)
- 6,7-Dihydro-5H-pyrrolo[1,2-a]imidazole-6-carboxylic acid (CAS 1369160-12-2)
Recommended Standards
- 2-(1-(Trifluoromethyl)cyclopropyl)acetaldehyde (CAS 1934804-69-9)
- [1,2,4]Triazolo[1,5-a]pyrimidine-5,7(1H,6H)-dione (CAS 211733-06-1)
- 2H-Pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (CAS 187486-05-1)
- 5,7-Difluoro-2-methylquinazolin-4-ol (CAS 1823931-59-4)
- N-Boc-3-iodo-DL-phenylalanine (CAS 273221-73-1)
- Tert-butyl (3-(fluoromethyl)azetidin-3-yl)carbamate (CAS 2168954-72-9)
- 2-(Dimethylamino)-2-(2-fluorophenyl)acetic acid hydrochloride (CAS 1214854-04-2)
- N-(3-Chlorophenyl)-4-hydroxy-1-methyl-2,2-dioxo-1,2-dihydro-2lambda~6~,1-benzothiazine-3-carboxamide (CAS 36881-71-7)
- Triheneicosanoin (CAS CATO-CCFD200470)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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 13829788188 / jacky.chen@cato-chem.com