[1,1'-Binaphthalene]-4,4'-diamine CAS 481-91-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 481-91-4 |
| Molecular Formula | C20H16N2 |
| Molecular Weight | 284.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[1,1'-Binaphthalene]-4,4'-diamine (CAS 481-91-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H16N2. Molecular weight: 284.35 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H16N2 |
| Molecular Weight | 284.35 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Binaphthalene Standards
- (S)-[1,1'-Binaphthalene]-4,4'-diamine (CAS 18531-98-1)
- (R)-[1,1'-Binaphthalene]-4,4'-diamine (CAS 64235-43-4)
- [1,1'-Binaphthalene]-2,7-diamine (CAS 2758677-57-3)
- [2,2'-Binaphthalene]-1,1'-diol (CAS 604-60-4)
- [1,1'-Binaphthalene]-2-carboxylic acid (CAS 18795-02-3)
- 2-Methyl-1,1'-binaphthalene (CAS 69363-30-0)
- [1,1'-Binaphthalene]-4,4'-dicarbonitrile (CAS 115584-22-0)
- (1R)-[1,1'-Binaphthalene]-2,2'-dicarbonitrile (CAS 129783-80-8)
Recommended Standards
- 1-((2-Hydroxynaphthalen-1-yl)methyl)piperidine-4-carboxamide (CAS 296792-66-0)
- (S)-N-((2S,3S)-1-((2-Amino-2-oxoethyl)amino)-3-methyl-1-oxopentan-2-yl)pyrrolidine-2-carboxamide (CAS 3481-36-5)
- 1-(1-(Tert-butoxycarbonyl)piperidin-4-yl)azetidine-3-carboxylic acid (CAS 889953-58-6)
- 3-(Hydroxymethyl)-5-methylfuran-2(5H)-one (CAS 6277-49-2)
- 3-Chloro-3H-pyrazole (CAS 610272-24-7)
- 1-Chloro-4-(2,3-dihydro-1H-inden-5-yl)phthalazine (CAS 866133-22-4)
- 2-Fluoro-5-iodo-N,N-dimethylbenzamide, 97% (CAS 866683-82-1)
- Ambroxol impurity 115 (CAS CATO-C4X-1085115)
- (4-((4-Fluorophenyl)sulfonyl)piperazin-1-yl)(4-nitrophenyl)methanone (CAS 428504-82-9)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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