1,3,3-Trimethyl-2-((1E,3E)-5-((E)-1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl)-3H-indol-1-ium perchlorate 81666-87-7 CAS 81666-87-7
| CAS No. | 81666-87-7 |
| Molecular Formula | C27H31N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,3,3-Trimethyl-2-((1E,3E)-5-((E)-1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl)-3H-indol-1-ium perchlorate 81666-87-7 (CAS 81666-87-7), a certified reference material (molecular formula C27H31N2ClO4, MW 483.00 g/mol) for analytical method development and quality control.
1,3,3-Trimethyl-2-((1E,3E)-5-((E)-1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl)-3H-indol-1-ium perchlorate 81666-87-7 (C27H31N2ClO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 1,3,3-Trimethyl-2-((1E,3E)-5-((E)-1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl)-3H-indol-1-ium perchlorate 81666-87-7 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.
Physical & Chemical Properties
| Molecular Formula | C27H31N2 ClO4 |
| Molecular Weight | 483.00 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Trimethyl Standards
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Recommended Standards
- (2R)-2-[(S)-hydroxyphenylmethyl]-4-morpholinecarboxylic Acid 1,1-Dimethylethyl Ester (CAS 1030837-58-1)
- 2,3,4-Trihydroxybutanal (CAS 7558-94-3)
- 7-Amino-4,6-dimethyl-2H-chromen-2-one (CAS 66611-62-9)
- N-(5-Acetyl-2-methylpyridin-4-yl)acetamide (CAS 91842-97-6)
- N-(3-Ethoxy-4-methoxybenzyl)cycloheptanamine hydrobromide (CAS 1986483-85-5)
- 4-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridin-2-ol (CAS 1806971-34-5)
- 2-Chloro-3-methyl-6-phenylpyrimidin-4(3H)-one (CAS 1708079-79-1)
- 2-(Benzyloxy)-6-iodo-4-nitroaniline (CAS 757951-78-3)
- Heptanoyl Chloride (CAS 2528-61-2)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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