4-Amino-2-(methylthio)-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid CAS 106157-96-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 106157-96-4 |
| Molecular Formula | C9H8N4O3S |
| Molecular Weight | 252.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Amino-2-(methylthio)-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid (CAS 106157-96-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H8N4O3S. Molecular weight: 252.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H8N4O3S |
| Molecular Weight | 252.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-5-nitrobenzo[b]thiophene-2-carbohydrazide (CAS 906779-79-1)
- Methyl 3-amino-5-nitrobenzo[b]thiophene-2-carboxylate (CAS 34674-75-4)
- Methyl 3-amino-6-nitrobenzo[b]thiophene-2-carboxylate (CAS 35212-90-9)
- Methyl 3-amino-7-nitrobenzo[b]thiophene-2-carboxylate (CAS 76878-17-6)
- Methyl 2-amino-5-(3-fluorophenyl)-1,3-thiazole-4-carboxylate (CAS 127918-93-8)
- methyl 4-amino-3-(2-fluorophenyl)-1,2-thiazole-5-carboxylate (CAS 1468470-94-1)
- 2-(2-Amino-4-(4-fluorophenyl)thiazol-5-yl)acetic acid (CAS 775519-63-6)
- 5-Amino-3-methyl-2-(4-(trifluoromethyl)phenyl)pyridine (CAS 872254-89-2)
Recommended Standards
- Methyl 2-((3-cyano-4-nitrophenyl)thio)acetate (CAS 1024431-85-3)
- 2-(2-(1H-Pyrazole-4-carboxamido)thiazol-4-yl)acetic acid (CAS 1154939-61-3)
- 3-(2,5-Dioxo-2,5-dihydro-1h-pyrrol-1-yl)benzene-1-sulfonamide (CAS 1020993-03-6)
- 1-(2-Methylpropyl)-5-(propan-2-yl)-1h-pyrazol-4-amine (CAS 1427380-55-9)
- n,n-Dimethyl-2-(4-oxopiperidin-1-yl)acetamide (CAS 1017026-70-8)
- 2-(3-Fluoropyridin-4-yl)propan-2-amine hydrochloride (CAS 2442597-47-7)
- Benzyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate (CAS 82244-11-9)
- 3-(Thiophen-2-yl)aniline (CAS 92057-12-0)
- Diallyl(methyl)(phenyl)silane (CAS 2633-60-5)
- Palmitoyl Hexapeptide-12 TFA salt (CAS 171263-26-6(Free Base))
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