4-Chlorobenzoic-d4 Acid CAS 85577-25-9
| CAS No. | 85577-25-9 |
| Molecular Formula | - |
| Molecular Weight | 160.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chlorobenzoic-d4 Acid (CAS 85577-25-9), a certified reference material (molecular formula C7HD4ClO2, MW 160.59 g/mol) for analytical method development and quality control.
The molecular framework of 4-Chlorobenzoic-d4 Acid (C7HD4ClO2) is characterized by deuterium isotope labeling, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 4-Chlorobenzoic-d4 Acid 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 | C7HD4ClO2 |
| Molecular Weight | 160.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; 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.) | 1981 |
| Halogen Content | Cl-containing |
Related Chlorobenzoic Standards
- 2-Chlorobenzoic-d4 Acid (CAS 1219795-28-4)
- 3-Chlorobenzoic acid-d4 (CAS 2098655-72-0)
- 4-Chlorobenzoic acid-phenyl-<SUP>13</SUP>C<SUB>6</SUB> (CAS 1173019-28-7)
- 2-Chlorobenzoic acid-phenyl-<SUP>13</SUP>C<SUB>6</SUB> (CAS 125970-63-0)
- 4-Chlorobenzoic acid-α-<SUP>13</SUP>C (CAS 138534-66-4)
- 2-Chlorobenzoic Acid-d (CAS 84450-85-1)
- 2-Acetyl-5-chlorobenzoic acid (CAS 115382-34-8)
- 4-Acetyl-2-chlorobenzoic acid (CAS 115382-35-9)
Recommended Standards
- 3-Fluoropropanesulfonyl Chloride (CAS 461-28-9)
- 3-(4-Chloro-1h-pyrazol-1-yl)propan-1-ol (CAS 1006319-94-3)
- 3-Chloropropane-1-sulfonyl fluoride (CAS 3821-80-5)
- 2-(4-Chloro-3-methyl-1h-pyrazol-1-yl)ethan-1-ol (CAS 1006480-03-0)
- (S)-2-Amino-N-cyclopropyl-N-((6-methoxypyridazin-3-yl)methyl)propanamide (CAS 1354008-61-9)
- (4-cyclopropyl-6-methoxy-pyrimidin-5-yl)boronic acid (CAS 1798304-51-4)
- Triphenylbismuthcarbonate (CAS 47252-14-2)
- 2-(4-Ethoxyphenyl)-2,3-dihydro-1,3-dioxo-1H-isoindole-5-carboxylic acid (CAS 166096-53-3)
- Cilnidipine impurity 20 (CAS CATO-C4X-179620)
- 4-Bromo-5-chloro-2-nitropyridin-3-amine (CAS 1701534-63-5)
- 6-Bromo-5-cyclopropoxypicolinamide (CAS 1243480-23-0)
- 1,3,3-Trichloro-1,1-difluoropropane (CAS 460-63-9)
- SID 7970631 (CAS 868224-75-3)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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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