2-Chloro-6-methoxybenzothiazole CAS 2605-14-3
| CAS No. | 2605-14-3 |
| Molecular Formula | C8H6ClNOS |
| Molecular Weight | 199.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-6-methoxybenzothiazole (CAS 2605-14-3), molecular formula C8H6ClNOS and molecular weight 199.66 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Chloro-6-methoxybenzothiazole (C8H6ClNOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 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 199.66 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 2-Chloro-6-methoxybenzothiazole 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 | C8H6ClNOS |
| Molecular Weight | 199.66 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, water (slightly soluble) |
| 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 | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 8-Chloro-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 100638-21-9)
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- 3-Chloro-4-methoxy-1,2-benzisothiazole (CAS 103486-06-2)
- 3-Chloro-6-methoxy-1,2-benzothiazole (CAS 103486-07-3)
- 6-Chloro-2-(methylthio)benzo[d]oxazole (CAS 1071296-64-4)
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Recommended Standards
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- 2-Chloro-5-methoxy-benzothiazole (CAS 3507-28-6)
- 2-Chloro-N-methylthieno[3,2-d]pyrimidin-4-amine (CAS 35265-86-2)
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- 4-(2-(4-Fluorophenyl)-7-methylimidazo[1,2-a]pyrimidin-5-yl)morpholine (CAS 866050-71-7)
- 1-Isopropyl-4-(2-nitrovinyl)benzene (CAS 42139-37-7)
- 3-Chlorobenzo[4,5]imidazo[1,2-a]pyrimidine (CAS 959245-17-1)
- ethyl (5Z,11Z)-icosa-5,11-dienoate (CAS 1187888-75-0)
- 1-(7-Chloro-3-methylbenzo[b]thien-2-yl)ethanone (CAS 38056-11-0)
- 2-Amino-3-hydroxy-3-(pyridin-3-yl)propanoic acid (CAS 50731-52-7)
- N2,N2-Bis(cyclobutylmethyl)thiazole-2,4-diamine (CAS 1707735-05-4)
- (Des-Thr?)-Glucagon trifluoroacetate salt (CAS 1802078-27-8)
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