2-(1H-tetrazol-1-yl)-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid CAS 1807977-40-7
| CAS No. | 1807977-40-7 |
| Molecular Formula | C9H8N4O3S |
| Molecular Weight | 252.25 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 2-(1H-tetrazol-1-yl)-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid (CAS 1807977-40-7), a certified reference material (molecular formula C9H8N4O3S, MW 252.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H8N4O3S, 2-(1H-tetrazol-1-yl)-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 252.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H8N4O3S |
| Molecular Weight | 252.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related H Standards
- 3-(1H-1,2,3,4-Tetrazol-5-yl)-4H,5H-pyrazolo[1,5-a]quinazolin-5-one (CAS 124570-58-7)
- 5-(2H-Tetrazol-5-yl)-2-thiophenesulfonyl chloride (CAS 924964-21-6)
- 2-(1h-1,2,3,4-Tetrazol-1-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylic acid (CAS 461457-23-8)
- 2-(2H-TEtrazol-2-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylic acid (CAS 2109508-93-0)
- 2-{2-[4-(1H-1,2,3,4-tetrazol-5-yl)phenoxy]ethoxy}ethan-1-ol (CAS 439109-47-4)
- 3-(2h-1,2,3,4-Tetrazol-2-yl)adamantane-1-carboxylic acid (CAS 438218-00-9)
- 4-(1H-Tetrazol-5-yl-methyl)-4H-benzo[1,4]thiazin-3-one (CAS 874765-99-8)
- 2-[2-(1H-1,2,3,4-tetrazol-1-yl)acetamido]benzoic acid (CAS 1016820-03-3)
Recommended Standards
- 1-((4-Nitrophenyl)thio)pyrrolidine-2,5-dione (CAS 17796-89-3)
- 1-((4-Nitrophenyl)sulfonyl)-1H-pyrrole (CAS 18836-83-4)
- 5-sulfamoylisoquinoline-1-carboxylic acid (CAS 1427380-39-9)
- 1-(Phenylsulfonyl)-1H-1,2,4-triazole-5-carboxamide (CAS 62881-67-8)
- (R)-4-Methylcyclohex-2-en-1-one (CAS 75337-05-2)
- (E)-3-(2-Fluorophenyl)but-2-enoic acid (CAS 1865690-02-3)
- 3-((1-Phenyl-1H-pyrazolo[3,4-b]pyrazin-5-yl)oxy)aniline (CAS 87595-05-9)
- 3-Chloro-N-(2-(2-(4-methoxyphenyl)thiazol-4-yl)ethyl)benzamide (CAS 863513-56-8)
- 1-Naphthalen-2-ylmethyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (CAS 941686-18-6)
- 4-(4-Chloro-3-methylphenoxy)butanoic acid (CAS 23609-99-6)
- propyl 4-methylpentanoate (CAS 25415-68-3)
- 1-(2-Methoxy-4-nitrophenyl)-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (CAS 1159697-62-7)
- N-(5-(5-Bromothiophen-2-yl)-1,3,4-oxadiazol-2-yl)-3-(2-chlorophenyl)acrylamide (CAS 1058189-78-8)
- Vialox Peptide(Pentapeptide-3) (CAS 135679-88-8)
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