Crystal violet lactone（CVL）CAS:1552-42-7
Dyeing and Pigments 2025-03-02
Chemical Name: Crystal Violet Lactone
Synonyms: CVL, 3,3-Bis(4-dimethylaminophenyl)-6-dimethylaminophthalide
CAS No.: 1552-42-7
Molecular Formula: C₂₆H₂₉N₃O₂
Molecular Weight: 415.53 g/mol
Appearance: White to off-white crystalline powder
Quality Specifications
| Parameter | Specification |
|---|---|
| Assay (HPLC) | ≥96% |
| Total Colorless Dye | ≥97% |
| Loss on Drying | ≤0.2% |
| Impurities | ≤0.1% |
Applications
- Pressure-Sensitive Paper:
- Key color former for carbonless copy paper (NCR paper)
- Used in commercial invoices, receipts, and fax papers
- Functional Dye:
- High-sensitivity color developer with fast response
Packaging & Shipping
- Standard Packaging:
- 25 kg/bag (aluminum foil bag with desiccant)
- Custom Options:
- Smaller quantities available (1 kg, 5 kg)
Storage & Handling
- Storage Conditions:
- Store in a cool, dry, ventilated warehouse (<25°C)
- Relative humidity: <60%
- Protection Measures:
- Light-sensitive – use opaque/amber containers
- Moisture-sensitive – keep containers sealed
Disclaimer:
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