Pigment Red 166 CAS 3905-19-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3905-19-9 |
| Molecular Formula | C40H24Cl4N6O4 |
| Molecular Weight | 794.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pigment Red 166 (CAS 3905-19-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C40H24Cl4N6O4. Molecular weight: 794.47 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C40H24Cl4N6O4 |
| Molecular Weight | 794.47 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) | 30.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Pigment Standards
- Pigment Yellow 83 (CAS 5567-15-7)
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- Pigment Yellow 14 (Technical Grade) (CAS 5468-75-7)
- Pigment yellow 93 (CAS 5580-57-4)
- Pigment Orange 34 (Technical Grade) (CAS 15793-73-4)
- Pigment Yellow 110 (CAS 5590-18-1)
- Pigment Yellow 13 (CAS 6358-85-6)
Recommended Standards
- 4-Amino-1-(4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)pyrimidin-2(1H)-one (CAS 6027-65-2)
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- Maytansinoid DM4 (CAS 799840-96-3)
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- 1-(3-Fluorophenyl)butan-1-one (CAS 21550-04-9)
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- Biotinyl-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802086-28-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com