4-Chloro-1H-benzo[d]imidazole-2(3H)-thione CAS 75335-72-7
| CAS No. | 75335-72-7 |
| Molecular Formula | C7H5ClN2S |
| Molecular Weight | 184.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Chloro-1H-benzo[d]imidazole-2(3H)-thione is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Chloro-1H-benzo[d]imidazole-2(3H)-thione (CAS 75335-72-7) is a high-purity analytical reference standard with the molecular formula C7H5ClN2S and a molecular weight of 184.65 g/mol.
Structurally, 4-Chloro-1H-benzo[d]imidazole-2(3H)-thione (C7H5ClN2S) contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 184.65 g/mol, it falls into the medium-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.
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 | C7H5ClN2S |
| Molecular Weight | 184.65 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.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 4-Amino-2-chlorophenyl thiocyanate (CAS 3226-46-8)
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- 4-Chlorobenzo[d]isothiazol-3-amine (CAS 25380-80-7)
- (E)-3-(4-methoxyphenyl)-3-oxopropanal O-(2,4-dichlorobenzyl) oxime (CAS 338976-63-9)
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- (E)-N-((1-(3-Cyanopyrazin-2-yl)piperidin-4-yl)methyl)-3-(furan-3-yl)acrylamide (CAS 1798428-54-2)
- (R)-2-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)pyrrolidine (CAS 684208-20-6)
- 5-Nitro-2-(pyrazol-1-yl)benzonitrile (CAS 17417-12-8)
- Methyl (S)-2-amino-3-(5-(trifluoromethyl)pyridin-2-yl)propanoate (CAS 1213867-93-6)
- 5-(Hydroxymethyl)nicotinic acid (CAS 1240620-76-1)
- 3-Chloroimidazo[1,2-b]pyridazine (CAS 60903-17-5)
- N-Ethyldodecanamide (CAS 35936-85-7)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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