5-Chloro-2-phenylbenzothiazole CAS 952-16-9
| CAS No. | 952-16-9 |
| Molecular Formula | C13H8ClNS |
| Molecular Weight | 245.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Chloro-2-phenylbenzothiazole 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.
CATO supplies 5-Chloro-2-phenylbenzothiazole (CAS 952-16-9), a certified reference material (molecular formula C13H8ClNS, MW 245.73 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 5-Chloro-2-phenylbenzothiazole is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 245.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C13H8ClNS |
| Molecular Weight | 245.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| 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
- 2-Chloro-4-(naphthalen-2-yl)thiazole (CAS 1049126-52-4)
- 1187163-17-2 4-(5-Chloro-2-thienyl)isoquinoline MFCD13152432 (CAS 1187163-17-2)
- 1187169-90-9 3-(5-Chloro-2-thienyl)quinoline MFCD13152433 (CAS 1187169-90-9)
- 2-[(6-Chloro-2-methylsulfanyl-pyrimidin-4-ylamino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1261232-21-6)
- (S)-1-(6-Chloro-2-(methylthio)pyrimidin-4-yl)pyrrolidin-3-ol, 95% (CAS 1261233-29-7)
- 2-Chloro-N-methyl-N-((3-(methylthio)pyrazin-2-yl)methyl)acetamide (CAS 1353961-12-2)
- N-(2-Chloro-6-methylphenyl)-1,3-propanesultam (CAS 1400644-34-9)
- 4-Chloro-2-(4-methylpiperazin-1-yl)thiazole-5-carbaldehyde (CAS 141764-88-7)
Recommended Standards
- 4-Chloro-3-phenylthieno[2,3-b]pyridine (CAS 890124-91-1)
- 6-chloro-2-phenyl-1,3-benzothiazole (CAS 7466-32-2)
- 4-Chloro-2-(thiophen-2-yl)quinoline (CAS 332181-86-9)
- Butyl(4-chloro-2-nitrophenyl)sulfane (CAS 59083-52-2)
- 6-Bromo-2-[4-(trifluoromethoxy)phenoxy]-1,3-benzothiazole (CAS 1972643-27-8)
- 2-(Chloromethyl)-6,7-difluorobenzoxazole (CAS 948007-83-8)
- 4,7-Bis(4-bromophenyl)benzo[c][1,2,5]thiadiazole (CAS 287966-64-7)
- 1-(4-Chlorophenyl)-3-methylbutan-1-amine (CAS 91428-42-1)
- 1-Bromo-3-(trichloromethoxy)benzene (CAS 1404193-84-5)
- (E)-4-(dimethylamino)-2-(2-((((2-methoxybenzyl)oxy)imino)methyl)-1H-pyrrol-1-yl)nicotinonitrile (CAS 303986-44-9)
- 1-[8-[1-oxo-2-(1-piperidinyl)ethyl]-2-dibenzofuranyl]-2-(1-piperidinyl)ethanone dihydrochloride 2-piperidin-1-yl-1-[8-(2-piperidin-1-ylethanoyl)dibenzofuran-2-yl]ethanone dihydrochloride 40870-59-5 A825326 (CAS 40870-59-5)
- Di(pyridin-4-yl)methanone (CAS 6918-15-6)
- 2-(Hydroxyimino)propanal oxime compound with 1,1-bis(2-methoxyphenyl)propan-2-one (1:1) (CAS 43021-97-2)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
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