4,5,6,7-Tetrahydrobenzothiophene CAS 13129-17-4
| CAS No. | 13129-17-4 |
| Molecular Formula | C8H10S |
| Molecular Weight | 138.23 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.
4,5,6,7-Tetrahydrobenzothiophene (CAS 13129-17-4), molecular formula C8H10S and molecular weight 138.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,5,6,7-Tetrahydrobenzothiophene (C8H10S) contains sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 138.23 g/mol, it falls into the low-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C8H10S |
| Molecular Weight | 138.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Sulfur Atoms | 1 |
Related Tetrahydrobenzothiophene Standards
- 4,5,6,7-Tetrahydrobenzothiophene-2-carbaldehyde (CAS 57021-53-1)
- 4,5,6,7-Tetrahydrobenzothiophene-2-carboxamide (CAS 57021-58-6)
- 4,5,6,7-Tetrahydrobenzothiophene-3-carboxamide (CAS 95461-21-5)
- Ethyl 4,5,6,7-Tetrahydrobenzothiophene-3-carboxylate (CAS 14559-12-7)
- 4,5,6,7-Tetrahydrobenzothiophene-2-sulfonyl Chloride (CAS 128852-17-5)
- 4,5,6,7-Tetrahydrobenzothiophene-3-methanamine (CAS 924838-30-2)
Recommended Standards
- 2-((1H-Indol-3-yl)methyl)benzoic acid (CAS 1221-99-4)
- 2-methylthioanisole (CAS 14092-00-3)
- L-Leucine D7 (CAS 92751-17-2)
- 2-(2-Methylallyl)thiophene (CAS 146605-46-1)
- 2-(Isopropyl(4-isopropylbenzyl)amino)acetonitrile (CAS 1424435-36-8)
- 3-methoxy-5-(pyrrolidin-3-yl)pyridine dihydrochloride (CAS 1909309-70-1)
- 2-{[(Z)-N'-cyano-N-(2-fluorophenyl)carbamimidoyl]sulfanyl}-N-(4-methoxyphenyl)acetamide (CAS 488132-06-5)
- N-(3-Cyano-4,5-dimethylthiophen-2-yl)-2-phenoxyacetamide (CAS 354141-11-0)
- (2R,3S,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(6-phenoxy-9H-purin-9-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 133471-07-5)
- 4-Acetylphenyl sulfate potassium salt (CAS 38533-41-4)
- D-Arg8-Cetrorelix (CAS CATO-C4X-201427)
- N,N-Diethyl-N'-(4'-trifluoromethylbiphenyl-4-ylmethyl)-ethane-1,2-diamine (CAS 304694-40-4)
- 5-(Benzyloxy)isophthalic acid (CAS 114274-39-4)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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