9-Ethyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-carbazol-9-ium hydrogensulfate CAS 85283-94-9
| CAS No. | 85283-94-9 |
| Molecular Formula | 2*C27H27N2 |
| 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 9-Ethyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-carbazol-9-ium hydrogensulfate.
9-Ethyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-carbazol-9-ium hydrogensulfate (CAS 85283-94-9), molecular formula C27H27N2O4S and molecular weight 475.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 9-Ethyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-carbazol-9-ium hydrogensulfate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 475.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 9-Ethyl-3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-3H-carbazol-9-ium hydrogensulfate 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 | 2*C27H27N2 O4S |
| Molecular Weight | 475.58 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 |
| Degree of Unsaturation (DBE) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 3,3,6-Trimethylindolin-2-one (CAS 103240-43-3)
- (Z)-2-(1,3,3-Trimethylindolin-2-ylidene)acetaldehyde (CAS 1127303-63-2)
- 2,3,3-Trimethylindolin-1-amine (CAS 119094-83-6)
- 3,3,4-Trimethylindolin-2-one (CAS 122281-15-6)
- 1,3,3-Trimethylindolin-5-yl ethylcarbamate (CAS 139052-05-4)
- (R)-1,3,3-Trimethylindolin-5-yl (1-phenylethyl)carbamate (CAS 149312-52-7)
- 3,3,5-Trimethylindolin-2-one (CAS 192928-48-6)
- 3,3,7-Trimethylindolin-2-one (CAS 19501-89-4)
Recommended Standards
- 2-(3-(1H-Pyrrolo[2,3-b]pyridin-4-yl)phenyl)acetonitrile (CAS 916172-63-9)
- Methyl 1-bromopyrene-2-carboxylate (CAS 2764619-37-4)
- cis-1-Boc-4-methylamino-3-methoxypiperidine (CAS 1419101-07-7)
- 1-(4-(Isobutylamino)piperidin-1-yl)ethan-1-one (CAS 902836-84-4)
- 2-Methyl-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine (CAS 26323-62-6)
- Methyl 7-methoxy-2-oxo-2H-chromene-3-carboxylate (CAS 622823-37-4)
- 5-((Butylthio)methyl)furan-2-carboxylic acid (CAS 99173-23-6)
- (S)-cyclopropyl(4-fluoro-3-(trifluoromethyl)phenyl)methanamine (CAS 1213101-10-0)
- 1-(Bromomethyl)-4-((trifluoromethyl)sulfonyl)benzene (CAS 118089-89-7)
- (Pro3)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 299898-52-5)
Why CATO?
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