3,6-Bis((4-aminophenyl)imino)cyclohexa-1,4-diene-1,4-diamine CAS 20048-27-5
| CAS No. | 20048-27-5 |
| Molecular Formula | C18H18N6 |
| Molecular Weight | 318.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3,6-Bis((4-aminophenyl)imino)cyclohexa-1,4-diene-1,4-diamine 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.
3,6-Bis((4-aminophenyl)imino)cyclohexa-1,4-diene-1,4-diamine (CAS 20048-27-5), molecular formula C18H18N6 and molecular weight 318.38 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H18N6, 3,6-Bis((4-aminophenyl)imino)cyclohexa-1,4-diene-1,4-diamine contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 318.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C18H18N6 |
| Molecular Weight | 318.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 6 |
Related Bis Standards
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Recommended Standards
- 2-Fluoromethyl-piperazine-1,4-dicarboxylic acid di-tert-butyl ester (CAS 2331260-27-4)
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- 2-((5-(Pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(thiazol-2-yl)acetamide (CAS 833434-07-4)
- N1-(2-Ethoxyphenyl)-N2-(2-(thiophen-3-yl)ethyl)oxalamide (CAS 1060227-98-6)
- n-(Pyrimidin-5-ylmethyl)pentan-1-amine (CAS 1342558-03-5)
- Pimavanserin Impurity 32 (CAS 37806-37-4)
- 1-(1,5-Dimethyl-1h-pyrazol-4-yl)thiourea (CAS 1004451-60-8)
- Quinazoline-2-carbaldehyde (CAS 875251-57-3)
- 3-Benzyloxycyclobutane-1,1-dicarboxylic acid ethyl ester (CAS 180205-43-0)
- (E)-N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N-((2,6-dichlorobenzyl)oxy)formohydrazonamide (CAS 339104-10-8)
- 3,4,5-Trifluorophenethyl acetate (CAS 1443351-10-7)
- 6-Amino-8-chloro-4-(neopentylamino)quinoline-3-carbonitrile (CAS 2064105-70-8)
- 5-(2-Fluorophenyl)-3-(piperidin-2-yl)-1,2,4-oxadiazole (CAS 1308324-98-2)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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