Ethyl 4-iodo-2-(methylthio)pyrimidine-5-carboxylate CAS 1133-91-1
| CAS No. | 1133-91-1 |
| Molecular Formula | C8H9IN2O2S |
| Molecular Weight | 324.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Ethyl 4-iodo-2-(methylthio)pyrimidine-5-carboxylate (CAS 1133-91-1), a certified reference material (molecular formula C8H9IN2O2S, MW 324.14 g/mol) for analytical method development and quality control.
Ethyl 4-iodo-2-(methylthio)pyrimidine-5-carboxylate (C8H9IN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9IN2O2S |
| Molecular Weight | 324.14 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 3-iodo-5-(1-methyl-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 1093676-98-2)
- 2-((5-Iodo-2-methylquinolin-8-yl)oxy)acetonitrile (CAS 88757-50-0)
- 2-Iodo-N-(pyridin-4-yl)benzamide (CAS 331434-50-5)
- 3-Iodo-N-(pyridin-4(1h)-ylidene)benzamide (CAS 331434-48-1)
- 3-Iodo-N-phenylpicolinamide (CAS 57841-90-4)
- 4-Iodo-N-(pyridin-2-yl)benzamide (CAS 300401-95-0)
- 4-Iodo-N-(pyridin-4(1h)-ylidene)benzamide (CAS 331434-49-2)
- 1-iodo-4-(2-phenylethoxy)benzene (CAS 1044065-94-2)
Recommended Standards
- 2-Bromo-3-methyl-n-[2-(trifluoromethyl)phenyl]butanamide (CAS 1016529-40-0)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[de]isochromene-1,3-dione (CAS 1193092-34-0)
- Sodium 8-amino-4-bromonaphthalene-1-sulfonate (CAS 223103-14-8)
- 1-(5-Bromo-3-(trifluoromethyl)pyridin-2-yl)-4-methylpiperazine (CAS 1208081-84-8)
- Guanosine 5＇-Monophosphate Disodium Salt (CAS 5550-12-9)
- (3,3-Difluorocyclobutyl)methyl 4-methylbenzenesulfonate (CAS 681128-40-5)
- 6-Bromothiazolo[4,5-b]pyridine-2-carboxylic acid (CAS 1780212-82-9)
- methyl 5,7-dihydroxy-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylate (CAS 1957253-68-7)
- 4-Chloro-N-[2-(6-chloro-4-trifluoromethyl-pyridin-2-ylsulfanyl)-ethyl]-benzamide (CAS 1311280-24-6)
- 2-(4-Methyl-5-phenyl-1H-imidazol-2-yl)benzoic acid (CAS 824395-46-2)
- 1-(3-Trifluoromethylbenzyl)-1H-pyrazol-4-ol (CAS 1715776-50-3)
- Elobixibat Impurity 35 (CAS CATO-C4X-283835)
- Pregabalin Impurity 116 (CAS 1101167-84-3（free base）)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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 18665070610 / Nicole.chen@cato-chem.com