Dihydrocoumarin
Synonyms
2H-1-Benzopyran-2-one, 3,4-dihydro-;
3,4-Dihydrocoumarin;
FEMA No. 2381;
Category
Non-ionic surfactant
> Ester
>> Lactones
Chemical Numbering System
CAS: 119-84-6
EINECS: 204-354-9
Molecular Formula & Molecular Weight
Molecular Formula: C9H8O2
Molecular Weight: 148.16
Structure
Properties
Appearance (1), solid; or liquid.
Odor hay-like odor.
Solubility slightly soluble in water.
Physical - chemical properties
|
Melting point, °C |
25[1] |
Stability stable. Under strong alkali condition, easily hydrolyzed.
Risk Solid (or liquid) 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 |
1760mg/kg[2] |
|
mouse intraperitoneal LD50 |
200mg/kg[2] |
|
rabbit skin LD50 |
> 5000mg/kg[2] |
|
rat oral LD50 |
1460mg/kg[2] |
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 (or liquid) |
|
|
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 (or liquid) |
|
|
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), GB 28363 Food safety national standard -- Food additive -- Dihydrocoumarin
(1b), QB/T 4244 Dihydrocoumarin
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as perfume.
2, Food
Use as food additive (perfume).
Manufacturers
References
[1]: HSDB. 119-84-6, 3,4-Dihydrocoumarin
[2]: ChemIDplus. 119-84-6, 3,4-Dihydrocoumarin
Update: 20200412(1);