5-Fluoro-1H-benzo[d]imidazole-2(3H)-thione CAS 583-42-6
| CAS No. | 583-42-6 |
| Molecular Formula | C7H5FN2S |
| Molecular Weight | 168.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Fluoro-1H-benzo[d]imidazole-2(3H)-thione.
5-Fluoro-1H-benzo[d]imidazole-2(3H)-thione (CAS 583-42-6) is a high-purity analytical reference standard with the molecular formula C7H5FN2S and a molecular weight of 168.19 g/mol.
5-Fluoro-1H-benzo[d]imidazole-2(3H)-thione (C7H5FN2S) contains a nitrile group, sulfur-containing functionality, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 5-Fluoro-1H-benzo[d]imidazole-2(3H)-thione 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 | C7H5FN2S |
| Molecular Weight | 168.19 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-Ethyl-3,6-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 90197-47-0)
- 5-Fluorobenzo[d]isothiazol-3-amine (CAS 613262-17-2)
- 5-Ethyl-2-methoxy-6-methylpyrimidin-4-ol (CAS 55996-09-3)
- 5H-Pyrido[4,3-b]indole (CAS 244-69-9)
- 3-Amino-4-((3-methoxypropyl)amino)benzoic acid (CAS 1178706-44-9)
- 3-methyl-3-azabicyclo[3.2.1]octan-8-amine dihydrochloride (CAS 2173992-28-2)
- 1-[(4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl]-3,5-dimethyl-1H-pyrazol-4-amine hydrochloride (CAS 1049752-43-3)
- 3-[(2-Amino-ethyl)-ethyl-amino]-pyrrolidine-1-carboxylic acid benzyl ester (CAS 1353981-87-9)
- 4-Hydroxy-3,5-dimethoxybenzaldehyde oxime (CAS 5032-13-3)
- 5-chloro-3-iodo-1-methyl-pyrrolo[3,2-b]pyridine (CAS 2231674-59-0)
- 14,16-Dihydroxy-3-methyl-3,4,5,6,9,10,11,12-octahydro-1H-benzo[c][1]oxacyclotetradecine-1,7(8H)-dione (CAS 42011-78-9)
- 4-((3-Allyl-4-oxo-2-thioxothiazolidin-5-ylidene)methyl)benzaldehyde (CAS 29947-18-0)
- 1-(2,5-Dimethylphenyl)-3-(ethoxycarbonyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264043-65-3)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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