2,4,6-Trichlorobenzene-1,3,5-triol CAS 56961-23-0
| CAS No. | 56961-23-0 |
| Molecular Formula | C6H3Cl3O3 |
| Molecular Weight | 229.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,4,6-Trichlorobenzene-1,3,5-triol (CAS 56961-23-0) is a high-purity analytical reference standard with the molecular formula C6H3Cl3O3 and a molecular weight of 229.45 g/mol.
Structurally, 2,4,6-Trichlorobenzene-1,3,5-triol (C6H3Cl3O3) contains a carboxylic acid group, 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 229.45 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).
As a certified reference material (CRM), 2,4,6-Trichlorobenzene-1,3,5-triol 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 | C6H3Cl3O3 |
| Molecular Weight | 229.45 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
Related Trichlorobenzene Standards
- 3,4,6-Trichlorobenzene-1,2-dithiol (CAS 87314-48-5)
- 2,4,6-Trichlorobenzene-1,3-diamine (CAS 3102-85-0)
- 3,4,5-Trichlorobenzene-1,2-diamine (CAS 30064-28-9)
- 2,4,6-Trichlorobenzene-1,3,5-tricarbonitrile (CAS 3638-98-0)
- 2,4,6-Trichlorobenzene-1,3,5-tricarbaldehyde (CAS 14222-98-1)
- 1，2，3-Trichlorobenzene-d3 (CAS 3907-98-0)
- 1,2,4-Trichlorobenzene-d3 (CAS 2199-72-6)
- 1,3,5-Trichlorobenzene-d3 (CAS 1198-60-3)
Recommended Standards
- 1-(5-Amino-1H-1,2,4-triazol-1-yl)-2,2,2-trichloroethanone (CAS 299969-02-1)
- 218777-23-2 2-Pyridylzinc bromide, 0.5M in THF, packaged under Argon in resealable ChemSeal bottles MFCD00671985 (CAS 218777-23-2)
- 2,4,6-Trimethylphenylmagnesium bromide 2-Mesitylmagnesium bromide solution 2633-66-1 (CAS 2633-66-1)
- Tipiracil Impurity 12 (CAS 99478-59-8)
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- Furfural-α-d (CAS 42220-86-0)
- Ethyl 2-[(6-Bromo-4-methyl-2-nitro-3-pyridyl)oxy]acetate (CAS 943994-61-4)
- 3,5,6,7-Tetrahydro-8-nitro-s-indacen-1(2H)-one (CAS 620592-45-2)
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- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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