Ethyl 4-cyano-2,5-dimethyl-1H-pyrrole-3-carboxylate CAS 67271-63-0
| CAS No. | 67271-63-0 |
| Molecular Formula | C10H12N2O2 |
| Molecular Weight | 192.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 4-cyano-2,5-dimethyl-1H-pyrrole-3-carboxylate.
Ethyl 4-cyano-2,5-dimethyl-1H-pyrrole-3-carboxylate (CAS 67271-63-0) is a high-purity analytical reference standard with the molecular formula C10H12N2O2 and a molecular weight of 192.21 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 4-cyano-2,5-dimethyl-1H-pyrrole-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C10H12N2O2 |
| Molecular Weight | 192.21 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, 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.) | 1976 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- methyl 7-cyano-2-azabicyclo[2.2.2]oct-5-ene-2-carboxylate (CAS 1909313-36-5)
- Ethyl 4-cyano-3,5-dimethyl-1H-pyrrole-2-carboxylate (CAS 6297-38-7)
- N-(4-cyano-1H-pyrazol-5-yl)pentanamide (CAS 178613-53-1)
- 3-Cyano-4H-thieno[3,2-b]pyrrole-5-carboxylic acid (CAS 1041421-65-1)
- 2-Cyano-N-(3-fluoro-2-methylphenyl)acetamide (CAS 1072069-60-3)
- N-(2-cyano-3-fluorophenyl)propanamide (CAS 1155153-85-7)
- 2-Cyano-N-(4-fluorobenzyl)acetamide (CAS 169120-70-1)
- 2-Cyano-4H-thieno[3,2-b]pyrrole-5-carboxylic acid (CAS 332099-48-6)
Recommended Standards
- Ethyl 4-Acetylbenzoate (CAS 38430-55-6)
- Ethyl 3-hydroxy-2-phenylacrylate (CAS 76636-17-4)
- Ethyl 4-cyclopropylpyrimidine-5-carboxylate (CAS 887408-31-3)
- Ethyl 3-amino-3-(pyridin-2-yl)acrylate (CAS 70076-37-8)
- 2-(3-Chloro-5-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1218789-42-4)
- 3-(2-Chlorophenyl)propanimidamide (CAS 887577-18-6)
- 4-Chloro-5,7-dihydrothieno[3,4-d]pyrimidine 6,6-dioxide (CAS 1781073-49-1)
- (Phenylac1,D-Tyr(Et)2,Lys6,Arg8,des-Gly9)-Vasopressin (CAS 129520-65-6)
- 3,4-Dimethylbenzaldehyde (CAS 5973-71-7)
- 2,5-Difluoroisonicotinic acid (CAS 851386-39-5)
- 3-bromo-8-nitro-imidazo[1,2-a]pyridine (CAS 52310-43-7)
- 7-Chloro-5-phenyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 28565-43-7)
- 2-Nitro-5H-thiazolo[3,2-a]pyrimidine-5,7(6H)-dione (CAS 1423875-16-4)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
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