168206-21-1 4-(2-Carboxyphenyl)-7-diethylamino-2-(7-diethylamino-2-oxochroman-3-yl)-chromylium perchlorate CTK8E6613 CAS 168206-21-1
| CAS No. | 168206-21-1 |
| Molecular Formula | C33H33N2O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 168206-21-1 4-(2-Carboxyphenyl)-7-diethylamino-2-(7-diethylamino-2-oxochroman-3-yl)-chromylium perchlorate CTK8E6613.
CATO supplies 168206-21-1 4-(2-Carboxyphenyl)-7-diethylamino-2-(7-diethylamino-2-oxochroman-3-yl)-chromylium perchlorate CTK8E6613 (CAS 168206-21-1), a certified reference material (molecular formula C33H33N2O5ClO4, MW 637.08 g/mol) for analytical method development and quality control.
168206-21-1 4-(2-Carboxyphenyl)-7-diethylamino-2-(7-diethylamino-2-oxochroman-3-yl)-chromylium perchlorate CTK8E6613 (C33H33N2O5ClO4) contains a nitrogen-containing heterocyclic scaffold, 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 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C33H33N2O5 ClO4 |
| Molecular Weight | 637.08 g/mol |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- 4',5'-Bis(4-carboxyphenyl)-[1,1':2',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 1078153-58-8)
- 9-(2-Carboxyphenyl)-2,7-dichloro-4,5-bis[(2-picolyl)(pyrazin-2-ylmethyl)aminomethyl]-6-hydoxy-3-xanthanone ZPP1 (CAS 1084898-23-6)
- 4-{2-{3,5-Bis[2-(4-carboxyphenyl)-1-ethynyl]-2,4,6-trimethylphenyl}-1-ethynyl}benzoic acid (CAS 1133384-24-3)
- 2,2-bis(4-carboxyphenyl)hexafluoropropane (CAS 1171-47-7)
- 5-(2-Carboxyphenyl)picolinic acid (CAS 1242339-50-9)
- 1-{2-[(2-Carboxyphenyl)amino]-2-oxoethyl}-1H-indole-2-carboxylic acid (CAS 1242928-26-2)
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Recommended Standards
- Methyl 7-amino-4-methyl-1H-indole-3-carboxylate (CAS 1352901-19-9)
- (4,4-Dimethyl-4,5-dihydro-thiazol-2-yl)-(2-methyl-cyclohexyl)-amine (CAS 748778-10-1)
- Lithium-<SUP>7</SUP>Li (CAS 13982-05-3)
- Juvenile Hormone I (CAS 13804-51-8)
- 2-Amino-5-methyl-1,3-benzothiazol-6-yl thiocyanate (CAS 21615-35-0)
- rac-methyl (2R,3S)-3-aminooxolane-2-carboxylate hydrochloride (CAS 1969287-67-9)
- Ethyl octahydro-1h-indole-2-carboxylate (CAS 79799-08-9)
- 1-((Tert-butoxycarbonyl)amino)-3-methylcyclobutane-1-carboxylic acid (CAS 1692589-40-4)
- 3-(4-Bromophenoxy)-N,N-diethylpropan-1-amine (CAS 92102-23-3)
- Peptide Impurity 26 (CAS 1350456-66-4)
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