methyl 5-methylthieno[2,3-d]pyrimidine-4-carboxylate CAS 2306272-41-1
| CAS No. | 2306272-41-1 |
| Molecular Formula | C9H16N2O2S |
| Molecular Weight | 216.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
methyl 5-methylthieno[2,3-d]pyrimidine-4-carboxylate (C9H16N2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
methyl 5-methylthieno[2,3-d]pyrimidine-4-carboxylate (CAS 2306272-41-1), molecular formula C9H16N2O2S and molecular weight 216.30 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures methyl 5-methylthieno[2,3-d]pyrimidine-4-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H16N2O2S |
| Molecular Weight | 216.30 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related methyl Standards
- methyl 6-methylthieno[2,3-d]pyrimidine-4-carboxylate (CAS 2306268-20-0)
- methyl 6-methylthieno[3,2-d]pyrimidine-4-carboxylate (CAS 2306269-09-8)
- methyl 7-methylthieno[3,2-d]pyrimidine-4-carboxylate (CAS 2306272-06-8)
- methyl 3-methylthieno[3,2-b]pyridine-7-carboxylate (CAS 1861444-61-2)
- 2-{5-methylthieno[2,3-b]thiophen-3-yl}acetic acid (CAS 85504-38-7)
- 2-{5-methylthieno[3,2-b]thiophen-3-yl}acetic acid (CAS 85504-42-3)
- Ethyl 3-methylthieno[2,3-b]pyridine-2-carboxylate (CAS 957059-45-9)
- 2-((5-Methylthieno[2,3-d]pyrimidin-4-yl)thio)acetonitrile (CAS 1215925-20-4)
Recommended Standards
- methyl 4-aminothieno[3,2-c]pyridine-7-carboxylate (CAS 2092800-09-2)
- ethyl 6-methylimidazo[2,1-b]thiazole-5-carboxylate (CAS 57626-37-6)
- ethyl 5-methylimidazo[2,1-b]thiazole-6-carboxylate (CAS 57332-81-7)
- methyl 7-aminothieno[2,3-c]pyridine-3-carboxylate (CAS 2306272-49-9)
- (5E,7Z)-Dodeca-5,7-dien-1-ol (CAS 72922-18-0)
- 3-[3-(trifluoromethyl)phenyl]azetidine, trifluoroacetic acid (CAS 1443237-00-0)
- 6-Chloro-5-hydroxy-2-methylnicotinic acid (CAS 1949018-63-6)
- (4R)-1-Boc-4-methylthiol-L-proline (CAS 876953-58-1)
- 6-Chloro-5-methyl-7-nitro-1,3-benzoxazol-2-amine (CAS 1820735-45-2)
- 3-(5-methylpyridin-3-yl)prop-2-enoic acid (CAS 944998-00-9)
- Budesonide Impurity 35 (CAS 3079028-41-1)
- 1-(Benzenesulfonyl)-3-(phenylsulfanyl)propan-2-ol (CAS 400081-08-5)
- (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(4-bromo-3-fluorophenyl)methanone (CAS 898756-17-7)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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