3,4,6-Trimethylthieno[2,3-b]pyridine-2-carboxylic acid CAS 400877-89-6
| CAS No. | 400877-89-6 |
| Molecular Formula | C11H11NO2S |
| Molecular Weight | 221.28 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 3,4,6-Trimethylthieno[2,3-b]pyridine-2-carboxylic acid.
3,4,6-Trimethylthieno[2,3-b]pyridine-2-carboxylic acid (CAS 400877-89-6), molecular formula C11H11NO2S and molecular weight 221.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,4,6-Trimethylthieno[2,3-b]pyridine-2-carboxylic acid (C11H11NO2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,4,6-Trimethylthieno[2,3-b]pyridine-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H11NO2S |
| Molecular Weight | 221.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Trimethylthieno Standards
- Trimethylthieno[2,3-d]pyrimidine-6-carboxylic acid (CAS 930395-79-2)
- 1-{2,4,5-trimethylthieno[2,3-d]pyrimidin-6-yl}ethan-1-one (CAS 941083-97-2)
- 2,5,6-trimethylthieno[2,3-d]pyrimidine-4-thiol (CAS 743452-19-9)
- 3,5,6-Trimethylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 35970-83-3)
- 2,4,5-Trimethylthieno[2,3-d]pyrimidine-6-carbaldehyde (CAS 941378-59-2)
- 2-({trimethylthieno[2,3-d]pyrimidin-4-yl}amino)acetic acid (CAS 871673-05-1)
- 2-({2,5,6-trimethylthieno[2,3-d]pyrimidin-4-yl}sulfanyl)acetic acid (CAS 626205-90-1)
- 4-((2,5,6-Trimethylthieno[2,3-d]pyrimidin-4-yl)amino)butanoic acid (CAS 886499-00-9)
Recommended Standards
- 3-(Benzo[d]thiazol-2-yl)butanoic acid (CAS 889773-96-0)
- 3-Amino-2-methyl-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 22721-36-4)
- 3-(Benzo[d]thiazol-2-yl)-2-methylpropanoic acid (CAS 879916-67-3)
- 3-Amino-4,6-dimethylthieno[2,3-b]pyridine-2-carboxamide (CAS 67795-42-0)
- N-[5-(1-Hydroxyethyl)-6-methyl-2-oxo-2H-pyran-3-yl]benzamide (CAS 294853-38-6)
- N-(2-(1H-Indol-1-yl)ethyl)-3-ethyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-amine (CAS 899974-92-6)
- 8-Amino-1,3,5-naphthalenetrisulfonic acid Trisodium Salt (CAS 6634-93-1)
- 6-(4-Bromophenyl)-5-(piperazin-1-ylmethyl)imidazo[2,1-b]thiazole (CAS 824413-87-8)
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- N-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}ethyl)benzamide (CAS 1043330-64-8)
- Acrylic Acid-13C3 (CAS 202326-54-3)
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