4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid CAS 116118-98-0
| CAS No. | 116118-98-0 |
| Molecular Formula | C8H9NO2S |
| Molecular Weight | 183.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid (C8H9NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid (CAS 116118-98-0), a certified reference material (molecular formula C8H9NO2S, MW 183.23 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 4,5,6,7-Tetrahydrothieno[3,2-c]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 | C8H9NO2S |
| Molecular Weight | 183.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Tetrahydrothieno Standards
- 4,5,6,7-Tetrahydrothieno[2,3-c]pyridine-7-carboxylic Acid (CAS 105222-07-9)
- 4,5,6,7-Tetrahydrothieno[2,3-c]pyridine-3-carboxylic acid (CAS 924871-17-0)
- 4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-4-carboxylic acid (CAS 77307-66-5)
- (4,5,6,7-Tetrahydrothieno[3,2-c]pyridin-2-yl)boronic acid (CAS 83611-96-5)
- 4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-2-carboxamide (CAS 1013210-86-0)
- 4-Propyl-4,5,6,7-tetrahydrothieno[3,2-c]pyridine (CAS 1226164-97-1)
- 1-(4,5,6,7-Tetrahydrothieno[3,2-c]pyridin-2-yl)ethanone (CAS 1013210-87-1)
- 5-Methyl-4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carbaldehyde (CAS 623564-87-4)
Recommended Standards
- Methyl 2-(pyridin-2-ylthio)acetate (CAS 114086-04-3)
- 2-Cyclobutylthiazole-4-carboxylic acid (CAS 1179337-86-0)
- (E)-Ethyl 3-(Thiazol-4-Yl)Acrylate (CAS 111601-00-4)
- 2-Methyl-5,6-dihydro-4H-cyclopenta[d]thiazole-4-carboxylic acid (CAS 1190391-79-7)
- 2-Bromo-1-methoxy-3-methyl-4-nitrobenzene (CAS 1196875-90-7)
- (Z)-4-((3H-indol-3-ylidene)methyl)-5-hydroxy-1,3-dihydro-2H-imidazole-2-thione (CAS 95474-46-7)
- 1-Benzyl-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1334147-57-7)
- 7-((4-Chlorophenyl)((3-hydroxypyridin-2-yl)amino)methyl)quinolin-8-ol (CAS 385786-48-1)
- (4-(Pyrimidin-5-yl)phenyl)methanol (CAS 198084-13-8)
- 5-Bromo-4-methyl-2-nitroaniline (CAS 40371-63-9)
- 4-Bromo-3-chloro-7-(trifluoromethyl)-1H-indazole (CAS 2091654-21-4)
- 1-(2-Fluoropyridin-3-yl)cyclopropane-1-carboxylic acid (CAS 1427021-82-6)
- tert-Butyl 8-bromo-4,5-dihydro-1H-benzo[c]azepine-2(3H)-carboxylate (CAS 1034573-54-0)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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