3-Chloro-4-fluorobenzo[b]thiophene-2-carbohydrazide CAS 774586-50-4
| CAS No. | 774586-50-4 |
| Molecular Formula | C9H6ClFN2OS |
| Molecular Weight | 244.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 3-Chloro-4-fluorobenzo[b]thiophene-2-carbohydrazide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Chloro-4-fluorobenzo[b]thiophene-2-carbohydrazide (CAS 774586-50-4), molecular formula C9H6ClFN2OS and molecular weight 244.67 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C9H6ClFN2OS |
| Molecular Weight | 244.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1986 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 3-Chloro-4,5-diethoxybenzoic acid (CAS 766523-19-7)
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- 3-Chloro-[1,1'-biphenyl]-4,4'-dicarbaldehyde (CAS 2289758-97-8)
- 3-Chloro-5-methoxy-4-propoxybenzoic acid (CAS 723245-47-4)
- 4-(2-Fluoro-5-methylphenyl)butan-2-one (CAS 1342981-47-8)
- prop-2-en-1-yl(propan-2-yl)amine hydrochloride (CAS 50529-74-3)
- N-Mesityl-2-(6-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)acetamide (CAS 561028-22-6)
- 5-Methyl-7-nitro-1H-indole (CAS 10553-09-0)
- Articaine EP Impurity B HCl (CAS 114176-52-2(Free Base))
- Phloroglucinol Impurity 58 (CAS 221652-95-5)
- n-(4-Aminophenyl)-3-(2,5-dioxoimidazolidin-1-yl)propanamide (CAS 953717-77-6)
- Benzyl (3S,4R)-4-amino-3-fluoropiperidine-1-carboxylate hydrochloride (CAS 2101206-40-8)
- 2,2-Bis(aminomethyl)propane-1,3-diol (CAS 63375-50-8)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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