1,1'-Diethyl-[3,3'-bidibenzo[cd,g]indazole]-6,6'(1H,1'H)-dione CAS 4203-77-4
| CAS No. | 4203-77-4 |
| Molecular Formula | C32H22N4O2 |
| Molecular Weight | 494.54 g/mol |
| 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 1,1'-Diethyl-[3,3'-bidibenzo[cd,g]indazole]-6,6'(1H,1'H)-dione.
1,1'-Diethyl-[3,3'-bidibenzo[cd,g]indazole]-6,6'(1H,1'H)-dione (CAS 4203-77-4), molecular formula C32H22N4O2 and molecular weight 494.54 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,1'-Diethyl-[3,3'-bidibenzo[cd,g]indazole]-6,6'(1H,1'H)-dione (C32H22N4O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,1'-Diethyl-[3,3'-bidibenzo[cd,g]indazole]-6,6'(1H,1'H)-dione 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 | C32H22N4O2 |
| Molecular Weight | 494.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
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Recommended Standards
- (S)-[1,1'-Binaphthalene]-2,2'-diyl dibenzoate (CAS 291772-40-2)
- 1,5-Dihydro-2-imino-1-[2-(4-methoxyphenyl)ethyl]-10-methyl-5-oxo-N-(3-pyridinylmethyl)-2H-dipyrido[1,2-a:2′,3′-d]pyrimidine-3-carboxamide (CAS 840498-67-1)
- (1R)-3,3'-Diphenyl[1,1'-binaphthalene]-2,2'-dicarboxylic acid (CAS 950889-62-0)
- 2-(4-(1-naphthoyl)piperazin-1-yl)-N-(benzo[d][1,3]dioxol-5-ylmethyl)nicotinamide (CAS 924809-87-0)
- Manganese Bisglycinate (CAS 14281-77-7)
- Ammonium Acetate (CAS 631-61-8)
- 5-methoxy-1-phenylpentan-2-amine (CAS 1249980-06-0)
- 4-(Acridin-9-ylamino)-N-(pyrimidin-2-yl)benzenesulfonamide (CAS 78356-81-7)
- n1-Cyclopropyl-n1-(2-methoxyethyl)ethane-1,2-diamine (CAS 1250363-22-4)
- Vilanterol Impurity 33 (CAS CATO-C4X-193533)
- Ethyl 3-(1H-indazol-6-yl)propanoate (CAS 885271-20-5)
- 3-(4-Fluorobenzoyl)-5,7-diiodo-2,3-dihydro-1,3-benzoxazol-2-one (CAS 865657-75-6)
- 2-(4-Bromophenyl)morpholine (CAS 83555-73-1)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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