Coumarin
Synonyms
2H-1-Benzopyran-2-one;
Category
Non-ionic surfactant
> Ester
>> Lactones
Chemical Numbering System
CAS: 91-64-5
EINECS: 202-086-7
Molecular Formula & Molecular Weight
Molecular Formula: C9H6O2
Molecular Weight: 146.14
Structure
Properties
Appearance (1), colorless or white solid.
Odor pleasant, fragrant odor resembling that of vanilla beans.
Solubility slightly soluble in water.
Stability stable. Under strong alkali condition, easily hydrolyzed.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
guinea pig oral LD50 |
202mg/kg[1] |
|
mouse intraperitoneal LD50 |
220mg/kg[1] |
|
mouse oral LD50 |
196mg/kg[1] |
|
mouse subcutaneous LD50 |
242mg/kg[1] |
|
rat oral LD50 |
293mg/kg[1] |
Reproductive effect[1].
Overall carcinogenic evaluation: Group 3[1].
Human Toxicity
Table 2 Human toxicity values
|
man oral TDLo |
87mg/kg/17W-I[1] |
|
women oral TDLo |
30mg/kg/30D-I[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent masking, adsorbing, dispersing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), QB/T 2544 Coumarin
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as perfume.
2, Personal care products
Perfume in personal care products.
Further information:
(1), In accordance with EU regulations (EC) No 1223/2009, directive 2003/15/EC, be included in Annex III/77.
Must be indicated in the list of ingredients, when its concentration exceeds:
- 0.001% in leave-on products;
- 0.01% in rinse-off products.
Manufacturers
References
[1]: ChemIDplus. 91-64-5, Coumarin
Update: 20141016(1); 20200412(2);