2-Methylthiazolo[4,5-d]pyrimidine-5,7(4H,6H)-dione CAS 18903-26-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 18903-26-9 |
| Molecular Formula | C6H5N3O2S |
| Molecular Weight | 183.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Methylthiazolo[4,5-d]pyrimidine-5,7(4H,6H)-dione (CAS 18903-26-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H5N3O2S. Molecular weight: 183.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H5N3O2S |
| Molecular Weight | 183.19 g/mol |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-cyanopyridine-3-sulfonamide (CAS 1803597-63-8)
- (2-(Aminomethyl)phenyl)dimethylphosphine oxide (CAS 2287298-64-8)
- methyl 3-azidothiophene-2-carboxylate (CAS 158878-93-4)
- 2-(2,6-dioxo-3-piperidyl)-5-(5-hydroxypent-1-ynyl)isoindoline-1,3-dione (CAS 2357113-47-2)
- N,N-Dimethyl-5-(oxazol-5-yl)-2-phenylpyrimidin-4-amine (CAS 823796-27-6)
- 5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 22276-95-5)
- 2-Chloro-5-(hydroxymethyl)phenylboronic Acid (CAS 1003042-59-8)
- Quinazoline-8-carboxamide (CAS 1823917-59-4)
- Nickel(II) bromide hydrate (CAS 313223-18-6)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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