Coumarin 343
- CAS No.
- 55804-65-4
- Chemical Name:
- Coumarin 343
- Synonyms
- C-343;KMG-20;COUMARIN(RG);COUMARIN 343;COUMARIN 519;Coumarine 343;RARECHEM AL BO 1145;Exciton Coumarin 519;COUMARIN 343 (2 GMS);Coumarin343lasergrade
- CBNumber:
- CB8681142
- Molecular Formula:
- C16H15NO4
- Molecular Weight:
- 285.29
- MDL Number:
- MFCD00051335
- MOL File:
- 55804-65-4.mol
| Product description | Number | Pack Size | Price |
| Coumarin 343 Dye content 97% | 393029 | 100mg | $63.4 |
| Coumarin 343 Dye content 97% | 393029 | 500mg | $214.7 |
| Coumarin 343 | C2899 | 200mg | $112 |
| Coumarin 343 | C725033 | 25mg | $75 |
| Coumarin 343 | 38614 | 200MG | $95.51 |
| More product size | |||
| Melting point | 240 °C(lit.) |
|---|---|
| Boiling point | 574.8±50.0 °C(Predicted) |
| Density | 1.47±0.1 g/cm3(Predicted) |
| storage temp. | room temp |
| solubility |
Chloroform: Slightly soluble: 0.1-1 mg/ml DMSO: Slightly soluble: 0.1-1 mg/ml |
| pka | -98.22±0.20(Predicted) |
| form | Crystalline Powder |
| color | Orange |
| ε(extinction coefficient) | ≥26000 at 441-445nm in ethanol at 0.01g/L |
| λmax | 443 nm |
| InChI | InChI=1S/C16H15NO4/c18-15(19)12-8-10-7-9-3-1-5-17-6-2-4-11(13(9)17)14(10)21-16(12)20/h7-8H,1-6H2,(H,18,19) |
| InChIKey | KCDCNGXPPGQERR-UHFFFAOYSA-N |
| SMILES | C12=C3OC(=O)C(C(O)=O)=CC3=CC3=C1N(CCC3)CCC2 |
| FDA UNII | 7GE3Q7LWR9 |
| EPA Substance Registry System | 1H,5H,11H-[1]Benzopyrano[6,7,8-ij]quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo- (55804-65-4) |
| UNSPSC Code | 12171500 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H319-H315 | |||||||||
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 36/37/38-20/21/22 | |||||||||
| Safety Statements | 37/39-26-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 29349990 | |||||||||
| NFPA 704 |
|
Coumarin 343 price More Price(19)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 393029 | Coumarin 343 Dye content 97% | 55804-65-4 | 100mg | $63.4 | 2025-07-31 | Buy |
| Sigma-Aldrich | 393029 | Coumarin 343 Dye content 97% | 55804-65-4 | 500mg | $214.7 | 2025-07-31 | Buy |
| TCI Chemical | C2899 | Coumarin 343 | 55804-65-4 | 200mg | $112 | 2025-07-31 | Buy |
| TRC | C725033 | Coumarin 343 | 55804-65-4 | 25mg | $75 | 2021-12-16 | Buy |
| Chem-Impex | 38614 | Coumarin 343 | 55804-65-4 | 200MG | $95.51 | 2021-12-16 | Buy |
Coumarin 343 Chemical Properties,Uses,Production
Description
Coumarin 519 is a synthetic fluorescent dye widely used in biomedical research. It serves as a valuable tool for studying drug distribution and pharmacokinetics, as well as for monitoring membrane potential and calcium signaling in live cells. Additionally, it finds applications in fluorescence microscopy, flow cytometry, and bioimaging techniques.
Chemical Properties
orange crystalline powder
Uses
Suitable as a laser dye.
Definition
ChEBI: Coumarin 343 is a member of 7-aminocoumarins. It has a role as a fluorochrome.
References
[1] G.A. REYNOLDS K. H D. New coumarin dyes with rigidized structure for flashlamp-pumped dye lasers[J]. Optics Communications, 1975, 13 3: Pages 222-225. DOI: 10.1016/0030-4018(75)90085-1
Coumarin 343 Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29843 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49976 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 +86-17392581500 | 1015@dideu.com | China | 3987 | 58 |
| Jiangxi Lotchem Co.,Ltd. | +8615270827708 | lancetu@jxlotchem.com | CHINA | 338 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 11743 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32436 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52846 | 58 |
| sgtlifesciences pvt ltd | +8617013299288 | dj@sgtlifesciences.com | China | 12373 | 58 |
| BTC pharm India | +918790379245 | banny.janga@btcpharm.com | India | 1262 | 58 |
View Lastest Price from Coumarin 343 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-12-13 | Coumarin343
55804-65-4
|
US $66.00-41.00 / mg | 97.74% | 10g | TargetMol Chemicals Inc. | ||
 |
2019-09-02 | Coumarin 343
55804-65-4
|
US $7.00 / KG | 1KG | 99% | 100kg | Career Henan Chemical Co |
-
- Coumarin343
55804-65-4
- US $66.00-41.00 / mg
- 97.74%
- TargetMol Chemicals Inc.
-
- Coumarin 343
55804-65-4
- US $7.00 / KG
- 99%
- Career Henan Chemical Co
