2,4-Dichlorobenzyl isothiocyanate CAS 18967-41-4
| CAS No. | 18967-41-4 |
| Molecular Formula | C8H5Cl2NS |
| Molecular Weight | 218.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Dichlorobenzyl isothiocyanate (CAS 18967-41-4), molecular formula C8H5Cl2NS and molecular weight 218.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-Dichlorobenzyl isothiocyanate (C8H5Cl2NS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. 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 218.10 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.
As a certified reference material (CRM), 2,4-Dichlorobenzyl isothiocyanate 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 | C8H5Cl2NS |
| Molecular Weight | 218.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichlorobenzyl Standards
- 3,4-Dichlorobenzyl isothiocyanate (CAS 18967-42-5)
- 3,4-Dichlorobenzyl thiocyanate (CAS 2082-67-9)
- N-(3,4-dichlorobenzyl)acetamide (CAS 53313-32-9)
- N-(2,5-Dichlorobenzyl)propan-2-amine (CAS 1152879-31-6)
- 2,4-Dichlorobenzyl Alcohol EP Impurity D (CAS 5468-96-2)
- 1-(3,4-Dichlorobenzyl)cyclopropan-1-ol (CAS 1342790-39-9)
- 1-(3,4-Dichlorobenzyl)cyclopropan-1-amine (CAS 1004284-66-5)
- n-(3,5-Dichlorobenzyl)cyclopropanamine (CAS 1094641-89-0)
Recommended Standards
- 2,3-Dichloro-5-methylthieno[3,2-b]pyridine (CAS 170861-46-8)
- 4,4,6-Trimethyl-2-(o-tolyl)-1,3,2-dioxaborinane (CAS 1446443-35-1)
- 4,4,5,5-Tetramethyl-2-(4-methylphenyl)dioxaborolane (CAS 195062-57-8)
- 2-(4-(Tert-butyl)phenyl)-1,3,2-dioxaborinane (CAS 1370412-35-3)
- (R)-3-Amino-4-(2-chlorophenyl)butanoic acid hydrochloride (CAS 331763-53-2)
- 2,4-Dibromo-6-({[4-(trifluoromethyl)phenyl]amino}methyl)phenol (CAS 477871-77-5)
- 4’-(tert-Butyldimethylsilyloxy)methyl 5’-Desmethyl Meloxicam (CAS 1797982-60-5)
- 1-(Dichloromethyl)-2-(trichloromethyl)benzene (CAS 2741-57-3)
- Enzalutamide Impurity 37 (CAS 1705583-65-8)
- 2-Ethoxy-4-nitropyridine (CAS 1187732-70-2)
- 1-(2-Bromo-4-fluorobenzyl)-4-methylpiperidine (CAS 1250615-20-3)
- Dihydrokaempferol (CAS 480-20-6)
- N-(2-methoxyethyl)-N-methylglycine hydrate (CAS 1262771-95-8)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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