Crystal violet lactone
Also known as: CVL, 6-Dimethylamino-3,3-bis(4-dimethylaminophenyl)phthalide, 3,3-Bis(p-dimethylaminophenyl)-6-dimethylaminophthalide, 6-(Dimethylamino)-3,3-bis[4-(dimethylamino)phenyl]-1(3H)-isobenzofuranone, Pergascript Blue I 2R, Copikem I, MFCD00070611, EINECS 216-293-5
Crystal violet lactone (CAS 1552-42-7) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C26H29N3O2 and a molecular weight of 415.527 g/mol. Key properties include a melting point of 180-183°C, a boiling point of 609.4±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 322.4±31.5 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1552-42-7
- Jingsj CID
- J-958517-5
- Molecular Formula
- C26H29N3O2
- Molecular Weight
- 415.527 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 180-183°C |
|---|---|
| Boiling Point | 609.4±55.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 322.4±31.5 °C |
| Exact Mass | 415.225983 |
| PSA | 36.02000 |
| LogP | 4.56 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.655 |
| Additional Property | <0.1 g/100 mL at 22.5 ºC |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Crystal violet lactone?
The CAS number of Crystal violet lactone is 1552-42-7.
What are the molecular formula and molecular weight of Crystal violet lactone?
Crystal violet lactone has molecular formula C26H29N3O2 and molecular weight 415.527 g/mol.
Is Crystal violet lactone hazardous?
Crystal violet lactone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Crystal violet lactone?
For Crystal violet lactone, Upstream Products: Phenolphthalein, Dimethyl sulfate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Crystal violet lactone (CAS 1552-42-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-958517-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.