4-Fluorophenyl Chlorothionoformate CAS 42908-73-6
| CAS No. | 42908-73-6 |
| Molecular Formula | C7H4ClFOS |
| Molecular Weight | 190.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Fluorophenyl Chlorothionoformate is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Fluorophenyl Chlorothionoformate (CAS 42908-73-6), molecular formula C7H4ClFOS and molecular weight 190.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H4ClFOS, 4-Fluorophenyl Chlorothionoformate contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 190.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 4-Fluorophenyl Chlorothionoformate 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 | C7H4ClFOS |
| Molecular Weight | 190.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Fluorophenyl Standards
- O-(3-Fluorophenyl) carbonochloridothioate (CAS 42908-74-7)
- 1-(2-fluorophenyl)-3,5-dimethylpyrazole (CAS 1153039-39-4)
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- 4-(1-(3-Fluorophenyl)ethyl)-1H-imidazole (CAS 945407-01-2)
- 4-(4-fluorophenyl)cyclohex-3-en-1-one (CAS 36716-73-1)
- N-(4-fluorophenyl)aminosulfonamide (CAS 924304-89-2)
- (3-fluorophenyl)methanesulfonic acid (CAS 1222776-01-3)
- 4-Fluorophenyl methanesulfonate (CAS 72358-72-6)
Recommended Standards
- 1-Chloro-3-(difluoromethyl)-2-ethylbenzene (CAS 2384619-73-0)
- 1-Chloro-4-(1,1-difluoropropyl)benzene (CAS 1892883-27-0)
- 1,3-BENZODIOXOLE-5-CARBONYL CHLORIDE 25054-53-9 2H-1,3-BENZODIOXOLE-5-CARBONYL CHLORIDE 3,4-(METHYLENEDIOXY)BENZOYL CHLORIDE AS00011 BENZO[1,3]DIOXOLE-5-CARBONYL CHLORIDE BUTTPARK 154\04-36 Benzo[d][1,3]dioxole-5-carbonyl chloride OTAVA-BB 1375532 PIPERONYLOYL CHLORIDE (CAS 25054-53-9)
- 4-(3-Chloropropyl)-1,2-difluorobenzene (CAS 152028-89-2)
- 1-Boc-piperidin-4-ylpropionicacid 154375-43-6 4-(2-Carboxy-ethyl)-piperidine-1-carboxylic acid tert-butyl ester A3393 (CAS 154375-43-6)
- 1-(5-Fluoro-4-methoxypyrimidin-2-yl)ethan-1-one (CAS 1823885-48-8)
- 4-Acetamido-2-fluorobenzoic acid (CAS 364-84-1)
- Methyl 3-hydrazino-4-methylthiophene-2-carboxylate (CAS 104680-36-6)
- Prostaglandin E1 sodium (CAS 27930-45-6)
- 2-[3-Fluoro-4-(methylamino)phenyl]-6-hydroxybenzothiazole (CAS 637003-10-2)
- 11-methyl-5-sulfanyl-8-thia-4,6-diazatricyclo[7.4.0.0²,⁷]trideca-1(9),2(7),5-trien-3-one (CAS 372180-34-2)
- 2-(3-methoxyphenyl)-1H-imidazole hydrochloride (CAS 1955499-40-7)
- 1-cyclopropylpyrazole-4-carbaldehyde (CAS 1082066-00-9)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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