(3,4-Dichloroisothiazol-5-yl)methyl 2-chlorothiazole-5-carboxylate CAS 1231216-76-4
| CAS No. | 1231216-76-4 |
| Molecular Formula | C8H3Cl3N2O2S2 |
| Molecular Weight | 329.61 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 (3,4-Dichloroisothiazol-5-yl)methyl 2-chlorothiazole-5-carboxylate.
(3,4-Dichloroisothiazol-5-yl)methyl 2-chlorothiazole-5-carboxylate (CAS 1231216-76-4), molecular formula C8H3Cl3N2O2S2 and molecular weight 329.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3,4-Dichloroisothiazol-5-yl)methyl 2-chlorothiazole-5-carboxylate (C8H3Cl3N2O2S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 329.61 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (3,4-Dichloroisothiazol-5-yl)methyl 2-chlorothiazole-5-carboxylate 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 | C8H3Cl3N2O2S2 |
| Molecular Weight | 329.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dichloroisothiazol Standards
Recommended Standards
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- 2-Chloro-7-nitro-1,3-benzothiazole (CAS 2942-22-5)
- Glucagon (1-29) (CAS 16941-32-5)
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