(1r)-2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol CAS 256474-27-8
| CAS No. | 256474-27-8 |
| Molecular Formula | C8H7Cl3O |
| Molecular Weight | 225.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (1r)-2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
(1r)-2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol (CAS 256474-27-8) is a high-purity analytical reference standard with the molecular formula C8H7Cl3O and a molecular weight of 225.50 g/mol.
Structurally, (1r)-2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol (C8H7Cl3O) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 225.50 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.
Physical & Chemical Properties
| Molecular Formula | C8H7Cl3O |
| Molecular Weight | 225.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related r Standards
- (S)-2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol (CAS 256474-24-5)
- 2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol (CAS 53065-95-5)
- (3-Chloro-5-(pyrrolidin-1-yl)phenyl)boronic acid (CAS 1402238-28-1)
- (2-Chloro-4-(pyrrolidin-1-yl)phenyl)boronic acid (CAS 2225156-01-2)
- [4-Chloro-3-(pyrrolidin-1-yl)phenyl]boronic acid (CAS 2377605-66-6)
- 2-Chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)pyridine (CAS 350489-38-2)
- 4-Chloro-2-(pyrrolidin-1-yl)phenylboronic acid (CAS 2096330-86-6)
- 4-Chloro-2-(trifluoromethyl)nicotinic acid (CAS 1018678-39-1)
Recommended Standards
- 1,2,3-Trichloro-4-ethoxybenzene (CAS 1881330-52-4)
- (R)-1-(2,3,4-Trichlorophenyl)ethan-1-ol (CAS 460052-36-2)
- 2,4,6-Trichloro-5-isopropylpyrimidine (CAS 1780-42-3)
- 1,2-Dichloro-4-(chloromethyl)-5-methoxybenzene (CAS 1521958-32-6)
- N-(3,5-dichlorophenyl)isobutyramide (CAS 7243-71-2)
- 1,1,1-Trifluoro-3-(pyridin-3-yl)propan-2-amine (CAS 1597217-63-4)
- 1-(2,6-dibromophenyl)hexahydropyrimidine-2,4-dione (CAS 1691653-79-8)
- Ethyl 2-(4-ethoxy-3,5-difluorophenyl)-2-oxoacetate (CAS 1443304-69-5)
- H-Glu(Gly-Gly-OH)-OH (CAS 13640-39-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com