5,7-dimethylpyrido[2,3-d]pyrimidine-2,4-diamine CAS 20739-23-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20739-23-5 |
| Molecular Formula | C9H11N5 |
| Molecular Weight | 189.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5,7-dimethylpyrido[2,3-d]pyrimidine-2,4-diamine (CAS 20739-23-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C9H11N5. Molecular weight: 189.22 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C9H11N5 |
| Molecular Weight | 189.22 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 5 |
Related dimethylpyrido Standards
- 5,7-Dimethylpyrido[2,3-d]pyrimidine-2,4-diol (CAS 2006-81-7)
- 3,6-Dimethylpyrido[2,3-b]pyrazin-2(1H)-one (CAS 159104-70-8)
- 5,7-Dimethylpyrido[2,3-d]pyrimidin-4(3H)-one (CAS 1913-72-0)
- 1,3-Dimethylpyrido[3,4-b]pyrazin-2(1H)-one (CAS 93192-52-0)
- 2,3-Dimethylpyrido[2,3-b]pyrazin-6(4H)-one (CAS 52996-62-0)
- 2,4-Dimethylpyrido[3,4-b]pyrazin-3(4H)-one (CAS 92799-14-9)
- 2,3-Dimethylpyrido[3,4-b]pyrazin-8-amine (CAS 109868-80-6)
- N,8-dimethylpyrido[2,3-d]pyridazin-5-amine (CAS 1330753-39-3)
Recommended Standards
- 4-Amino-2-(pyrrolidin-1-yl)pyrimidine-5-carbonitrile (CAS 55441-53-7)
- 6-Mercapto-5-nitropyrimidine-4(1H)-thione (CAS 73768-71-5)
- 4-(2-Ethyl-2H-tetrazol-5-yl)aniline (CAS 436092-88-5)
- Curcumin (CAS 458-37-7)
- 2-(2-Chlorophenyl)ethanamine (CAS 13078-80-3)
- 3-(1,3,4-Oxadiazol-2-yl)benzoic acid (CAS 1176505-26-2)
- (5-(4-Chlorophenoxy)-3-(3-(trifluoromethyl)phenyl)-1,2,4-triazin-6-yl)methanol (CAS 921620-31-7)
- N-Ethyl-2-(3-iodophenyl)benzo[d]oxazol-5-amine (CAS 1706441-47-5)
- Tert-butyl 3-(2-amino-1-fluoroethyl)azetidine-1-carboxylate (CAS 1785335-70-7)
- Tau Peptide (295-309) trifluoroacetate salt (CAS 330456-46-7)
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