Crystal violet lactone
- CAS No.
- 1552-42-7
- Chemical Name:
- Crystal violet lactone
- Synonyms
- CVL;Copikem I;violet lactone;6-(Dimethylamino)-3,3-bis[4-(dimethylamino)phenyl]phthalide;CVIL;HEL70;IMD50;HEL-S-105;Pergascript Blue I 2R;CRYSTAL VIOLET LACTONE
- CBNumber:
- CB7218930
- Molecular Formula:
- C26H29N3O2
- Molecular Weight:
- 415.53
- MDL Number:
- MFCD00070611
- MOL File:
- 1552-42-7.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Crystal Violet lactone Dye content 97% | 332488 | 5g | $87.4 |
| Crystal Violet lactone Dye content 97% | 332488 | 25g | $139 |
| Crystal Violet Lactone >97.0%(HPLC)(T) | C0741 | 25g | $102 |
| Crystal Violet Lactone | 267370 | 50g | $382 |
| Crystal Violet Lactone | 267370 | 100g | $505 |
| More product size | |||
| Melting point | 180-183°C |
|---|---|
| Boiling point | 534.12°C (rough estimate) |
| Density | 1.1424 (rough estimate) |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.7120 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| form | Powder |
| pka | 4.73±0.24(Predicted) |
| color | White to Light yellow |
| Water Solubility | <0.1 g/100 mL at 22.5 ºC |
| λmax | 354 nm |
| Major Application |
diagnostic assay manufacturing hematology histology |
| InChI | InChI=1S/C26H29N3O2/c1-27(2)20-11-7-18(8-12-20)26(19-9-13-21(14-10-19)28(3)4)24-16-15-22(29(5)6)17-23(24)25(30)31-26/h7-17H,1-6H3 |
| InChIKey | IPAJDLMMTVZVPP-UHFFFAOYSA-N |
| SMILES | C1(=O)C2=C(C=CC(N(C)C)=C2)C(C2=CC=C(N(C)C)C=C2)(C2=CC=C(N(C)C)C=C2)O1 |
| LogP | 4.95 at 25℃ |
| CAS DataBase Reference | 1552-42-7(CAS DataBase Reference) |
| FDA UNII | USS7CW0676 |
| EPA Substance Registry System | Crystal violet lactone (1552-42-7) |
| UNSPSC Code | 12171500 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29322090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
Crystal violet lactone price More Price(62)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 332488 | Crystal Violet lactone Dye content 97% | 1552-42-7 | 5g | $87.4 | 2026-04-30 | Buy |
| Sigma-Aldrich | 332488 | Crystal Violet lactone Dye content 97% | 1552-42-7 | 25g | $139 | 2026-04-30 | Buy |
| TCI Chemical | C0741 | Crystal Violet Lactone >97.0%(HPLC)(T) | 1552-42-7 | 25g | $102 | 2026-04-30 | Buy |
| Usbiological | 267370 | Crystal Violet Lactone | 1552-42-7 | 50g | $382 | 2026-06-03 | Buy |
| Usbiological | 267370 | Crystal Violet Lactone | 1552-42-7 | 100g | $505 | 2026-06-03 | Buy |
Crystal violet lactone Chemical Properties,Uses,Production
Chemical Properties
Light yellow solid
Uses
Crystal Violet lactone is an important functional dye for the production of pressure sensitive materials. It is a chemical intermediate , intermediates for thermal/carbonless Paper, used in medicine and biochemical research, a leuco dye..
Definition
ChEBI: Crystal violet lactone is a member of benzofurans.
General Description
Blue-green crystals or pale green powder.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Crystal violet lactone may be sensitive to excessive light and heat.
Health Hazard
SYMPTOMS: Symptoms of exposure to Crystal violet lactone may include irritation.
Fire Hazard
Flash point data for Crystal violet lactone are not available; however, Crystal violet lactone is probably combustible.
Flammability and Explosibility
Non flammable
Synthesis
![2-[bis[4-(dimethylamino)phenyl]methyl]-5-(dimethylamino)benzoic acid](/CAS/GIF/1255-69-2.gif)
1255-69-2
1552-42-7
Example 1: 21.5 g (97.0% purity) of 2-[4,4'-bis(dimethylamino)diphenylmethyl]-5-dimethylaminobenzoic acid was added to a 500 mL three-necked flask, followed by 250 mL of deionized water. The resulting suspension was stirred with the addition of 21.5 g of activated carbon (Model: SHIRASAGI-C, manufactured by Takeda Chemical Industries) and 2.0 g of 49% NaOH aqueous solution. The reaction system was heated to 90-95°C and maintained in this temperature range. During the reaction, air was passed into the reaction system at a rate of 400 mL/min for 9 hours. Upon completion of the reaction, the reaction mixture was filtered while hot, the filter cake was collected and re-slurried with deionized water. 19.5 g of 36% HCl aqueous solution was slowly added to the slurried solution until the solid was completely dissolved. Subsequently, the activated carbon was removed by filtration. The pH of the filtrate was adjusted to 7.0 with 49% NaOH aqueous solution and crystals of the target product were precipitated. The crystals were collected by filtration, washed with cold water and dried under vacuum to give 20.1 g of 3,3-bis(4-dimethylaminophenyl)-6-dimethylaminophthalide in 95.4% yield. Analyzed by HPLC, the by-product generation rate was 1.5% and the reaction selectivity was 98.4%.
References
[1] Patent: US5973168, 1999, A
[2] Journal of Organic Chemistry USSR (English Translation), 1986, vol. 22, # 10, p. 2012 - 2014
[3] Zhurnal Organicheskoi Khimii, 1986, vol. 22, # 10, p. 2240 - 2241
[4] Patent: US4595768, 1986, A
[5] Patent: US4271075, 1981, A
Crystal violet lactone Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +86-15350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 17389186172 | 1077@dideu.com | China | 3796 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 | sales1@chuanghaibio.com | China | 5220 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | 13343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| Shandong Deshang Chemical Co., Ltd. | +86-0531-8875-2665 +86-13153039501 | info@deshangchem.com | China | 661 | 58 |
| HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
View Lastest Price from Crystal violet lactone manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-30 | Crystal violet lactone
1552-42-7
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-07-24 | Crystal violet lactone
1552-42-7
|
1KG | 99% | 200mt/year | Jinan Finer Chemical Co., Ltd | ||
 |
2026-05-28 | violet lactone
1552-42-7
|
$9.00 | 1ASSAYS | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD |
-
- Crystal violet lactone
1552-42-7
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Crystal violet lactone
1552-42-7
- $0.00
- 99%
- Jinan Finer Chemical Co., Ltd
-
- violet lactone
1552-42-7
- $9.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
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