4H-Pyrazolo[3,4-d]pyrimidine CAS 271-76-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 271-76-1 |
| Molecular Formula | C5H4N4 |
| Molecular Weight | 120.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4H-Pyrazolo[3,4-d]pyrimidine (CAS 271-76-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4N4. Molecular weight: 120.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4N4 |
| Molecular Weight | 120.11 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.) | 1957 |
| Nitrogen Atoms | 4 |
Related H Standards
- 1H-Pyrazolo[3,4-b]pyrazine (CAS 272-60-6)
- 1H-Pyrazolo[3,4-c]pyridazine (CAS 271-75-0)
- 1H-Pyrazolo[3,4-d]pyridazine (CAS 271-55-6)
- 2H-Pyrazolo[3,4-b]pyrazine (CAS 24977-38-6)
- 2H-Pyrazolo[3,4-d]pyrimidine (CAS 271-78-3)
- 2H-Pyrazolo[4,3-d]pyrimidine (CAS 272-55-9)
- 3H-Pyrazolo[3,4-d]pyrimidine (CAS 271-79-4)
- 7H-Pyrazolo[3,4-b]pyrazine (CAS 399-62-2)
Recommended Standards
- 4-azidopyridine (CAS 39910-67-3)
- 4-Hydroxynicotinonitrile (CAS 89324-16-3)
- 4-Aminopyridazine-3-carbonitrile (CAS 20865-26-3)
- 4,6-Pyrimidinediamine, sulfate (2:1) (CAS 77709-02-5)
- N-Benzyl-N,N-bis(2-chloroethyl)amine Hydrochloride (CAS 10429-82-0)
- N-(7-(N,N-dimethylsulfamoyl)benzo[c][1,2,5]oxadiazol-4-yl)-N-methylglycinoyl chloride (CAS 156153-43-4)
- 3,3-Difluorohexanoic acid ethyl ester, stabilized over potassium carbonate (CAS 175286-67-6)
- 3-Bromo-1-ethyl-[1,3]dioxolo[4,5-g]cinnolin-4(1H)-one (CAS 58561-09-4)
- Z-Tyr-Val-Ala-DL-Asp-fluoromethylketone (CAS 1926163-56-5)
- a2,3-Sialylglycopeptide (CAS 189035-43-6)
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