2-Butyl-5-chlorobenzo[d]oxazole CAS 866142-97-4
| CAS No. | 866142-97-4 |
| Molecular Formula | C11H12ClNO |
| Molecular Weight | 209.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Butyl-5-chlorobenzo[d]oxazole 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 2-Butyl-5-chlorobenzo[d]oxazole (CAS 866142-97-4), a certified reference material (molecular formula C11H12ClNO, MW 209.67 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Butyl-5-chlorobenzo[d]oxazole is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 209.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C11H12ClNO |
| Molecular Weight | 209.67 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, 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Butyl Standards
- 1-(6-Chlorobenzo[d]oxazol-2-yl)propan-2-one (CAS 83334-51-4)
- N-(6-Chlorobenzo[d]isoxazol-3-yl)acetamide (CAS 1195331-54-4)
- N-(5-Chlorobenzo[d]oxazol-2-yl)acetamide (CAS 13988-20-0)
- 1-(5-Chlorobenzo[d]oxazol-2-yl)guanidine (CAS 332144-07-7)
- 2-(5-Chlorobenzo[d]oxazol-2-yl)acetamide (CAS 35783-57-4)
- 2-(5-Chlorobenzo[d]oxazol-2-yl)propan-2-amine (CAS 157763-24-1)
- 2-(7-Chlorobenzo[d]thiazol-2-yl)acetonitrile (CAS 157764-09-5)
- Methyl 2-chlorobenzo[d]oxazole-4-carboxylate (CAS 1007112-35-7)
Recommended Standards
- 2-(Chloroacetyl)-1,2,3,4-tetrahydroisoquinoline (CAS 41910-57-0)
- 2-Chloro-1-(1,2,3,4-tetrahydroquinolin-6-yl)ethanone (CAS 408309-80-8)
- 2-(5-Chloro-1-methyl-1H-indol-3-yl)ethanol (CAS 850406-55-2)
- 2-Chloro-1-(2-methylindolin-5-yl)ethanone (CAS 99859-71-9)
- 2-methoxy-4-(4-(1-methylpiperidin-4-yl)piperazin-1-yl)aniline (CAS 877676-39-6)
- 2-(Aminomethyl)-1-(5-chlorothiophen-2-yl)butan-1-ol (CAS 1492288-19-3)
- 4-Ethyl-3-(trifluoromethyl)aniline (CAS 74422-98-3)
- Chloro[(R)-(-)-5,5'-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-4,4'-bi-1,3-benzodioxole](p-cymene)ruthenium(II) Chloride (CAS 944451-32-5)
- 1-[(2-Methylbenzyl)sulfonyl]piperidine-4-carboxylic acid (CAS 1858249-74-7)
- 1,3-Benzenedicarboxylic acid, polymer with 1,2-ethanediol and 1,3,5-tris(2-hydroxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (CAS 67906-79-0)
- 3-Methyl-2-(piperazin-1-yl)benzonitrile (CAS 1702977-06-7)
- 3-(([2-(3,4-Dimethoxyphenyl)ethyl]amino)sulfonyl)benzoic acid (CAS 695191-70-9)
- 2-Fluoro-N-(2-(1-propyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)benzamide (CAS 955527-74-9)
- Palmitoyl Tripeptide-8 TFA salt (CAS 936544-53-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com