1-(3,4-Dichlorobenzyl)-3-((2,4,6-trichlorophenyl)diazenyl)-1H-indol-2-ol CAS 303985-19-5
| CAS No. | 303985-19-5 |
| Molecular Formula | C21H12Cl5N3O |
| Molecular Weight | 499.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1-(3,4-Dichlorobenzyl)-3-((2,4,6-trichlorophenyl)diazenyl)-1H-indol-2-ol (CAS 303985-19-5), a certified reference material (molecular formula C21H12Cl5N3O, MW 499.60 g/mol) for analytical method development and quality control.
1-(3,4-Dichlorobenzyl)-3-((2,4,6-trichlorophenyl)diazenyl)-1H-indol-2-ol (C21H12Cl5N3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 1-(3,4-Dichlorobenzyl)-3-((2,4,6-trichlorophenyl)diazenyl)-1H-indol-2-ol 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 | C21H12Cl5N3O |
| Molecular Weight | 499.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichlorobenzyl Standards
- 1-(2,4-Dichlorobenzyl)-3-(4-ethyl-5-((2-oxo-2-phenylethyl)thio)-4H-1,2,4-triazol-3-yl)pyridin-2(1H)-one (CAS 477853-24-0)
- 2-((2-(4-((3,4-Dichlorobenzyl)oxy)phenyl)-2-oxoethyl)thio)-3-ethylquinazolin-4(3H)-one (CAS 301194-77-4)
- 3-((2,4-Dichlorobenzyl)thio)-4-ethyl-5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-4H-1,2,4-triazole (CAS 778579-08-1)
- 3-(3-((2,4-Dichlorobenzyl)oxy)phenyl)-1-(mesitylsulfonyl)-1H-pyrazole (CAS 477712-75-7)
- N-(3,4-dichlorobenzyl)-1-(4-phenylthiazol-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 321998-62-3)
- (E)-3-(3-((2,4-dichlorobenzyl)oxy)phenyl)-3-oxopropanal O-(2,6-dichlorobenzyl) oxime (CAS 478047-02-8)
- Methyl 4-(((5-(((2,4-dichlorobenzyl)thio)methyl)-4-isopropyl-4H-1,2,4-triazol-3-yl)thio)methyl)benzoate (CAS 344274-21-1)
- 2-((2,4-Dichlorobenzyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477330-87-3)
Recommended Standards
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- TAPI-1 (CAS 171235-71-5)
- 4-(4-(Benzyloxy)-2-methylbenzoyl)-1-(2-(diethylamino)ethyl)-3-hydroxy-5-(pyridin-4-yl)-1H-pyrrol-2(5H)-one (CAS 488132-09-8)
- N-alpha-Boc-L-tryptophan Methyl Ester (CAS 33900-28-6)
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- [2-(2,6-dioxo-3-piperidyl)-3-oxo-isoindolin-5-yl]methyl N-[2-fluoro-4-methyl-5-(trifluoromethoxy)phenyl]carbamate (CAS 2803881-73-2)
- 2-(Methylsulfonyl)-4-(trifluoromethyl)benzonitrile (CAS 1383827-77-7)
- Sulfur, homopolymer (CAS 9035-99-8)
- N-(5-Mercapto-4-methyl-4H-[1,2,4]triazol-3-ylmethyl)-2-(4-methoxy-phenyl)-acetamide (CAS 701925-40-8)
- p-Toluidine-d7 (NH2) (CAS 68693-08-3)
- 1-(5-(Trifluoromethyl)pyridin-2-yl)piperidine-4-carbohydrazide (CAS 886496-29-3)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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