siam benzoin resin

Siam benzoin resin is a natural balsamic resin obtained from the Styrax tonkinensis tree. It forms as a fragrant, typically brownish solid or crystalline gum with a distinctive sweet vanilla and woody odor profile. The resin is known by several synonyms including anthostyrax tonkinensis resin and benzoe siam. In sensory terms, it exhibits a medium-strength balsamic scent with powdery undertones, making it valuable in perfumery and flavouring. Chemically classified as a natural gum resin, it is sourced primarily through the tapping of Styrax tonkinensis trees native to Southeast Asia. For authoritative reference, it links to PubChem. Its sensory and chemical properties support its use as a flavoring and fragrance agent derived from natural sources.

Siam benzoin resin occurs naturally as a secretion from the Styrax tonkinensis tree, prevalent in regions such as Southeast Asia. It is utilized extensively in fragrance formulations due to its characteristic sweet, vanilla-like balsamic aroma, which also provides fixative properties enhancing scent longevity. The resin substitutes for benzoin absolute in both perfumery and flavoring applications. It appears in complex scent profiles including floral, woody, oriental, and incense-type fragrances as well as in flavor notes. Its usage conforms to standards such as FEMA (US) guidelines governing flavor and fragrance materials. Additional roles include incorporation in products like soaps and classic perfume compositions such as Je Reviens, Shalimar, and Vol de Nuit.

Siam benzoin resin exhibits moderate solubility characteristics, being soluble in benzyl benzoate and slightly soluble in water under ambient conditions (estimated 11.61 mg/L at 25 °C) but insoluble in bulk water. Its flash point is approximately 212 °F (100 °C), indicating a moderate risk concerning flammability during handling. The resin's physical state as a semi-solid or crystalline gum facilitates easy formulation into oils and solvents commonly used in fragrance and flavor preparations. These physico-chemical traits influence its compatibility with other formulation components and determine appropriate handling, storage, and usage protocols within industrial and consumer products.

	styrax tonkinensis craib ex hartwiss resin
Canada Domestic Sub. List:	9000-72-0
Pubchem (sid):	135302389

FDA Substances Added to Food (formerly EAFUS):	View
Export Tariff Code:	3301.30.0000
FDA Listing of Food Additive Status:	View
Wikipedia:	View
Wikipedia2:	View2
FAO:	BENZOE TONKINENSIS
FAO:	SOFT RESINS AND BALSAMS

Safety information

European information :
Most important hazard(s):
Xn - Harmful.
R 22 - Harmful if swallowed. S 02 - Keep out of the reach of children. S 25 - Avoid contact with eyes. S 36 - Wear suitable protective clothing.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavor and fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
contains the following IFRA (Annex) restricted components: (non-analysis max. level reference only)
Recommendation for siam benzoin resin usage levels up to:
	8.0000 % in the fragrance concentrate.
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 3
Click here to view publication 3
		average usual ppm	average maximum ppm
baked goods:		-	26.00000
beverages(nonalcoholic):		-	15.00000
beverages(alcoholic):		-	-
breakfast cereal:		-	-
cheese:		-	-
chewing gum:		-	110.00000
condiments / relishes:		-	-
confectionery froastings:		-	-
egg products:		-	-
fats / oils:		-	-
fish products:		-	-
frozen dairy:		-	5.10000
fruit ices:		-	5.10000
gelatins / puddings:		-	10.00000
granulated sugar:		-	-
gravies:		-	-
hard candy:		-	8.70000
imitation dairy:		-	-
instant coffee / tea:		-	-
jams / jellies:		-	-
meat products:		-	-
milk products:		-	-
nut products:		-	-
other grains:		-	-
poultry:		-	-
processed fruits:		-	-
processed vegetables:		-	-
reconstituted vegetables:		-	-
seasonings / flavors:		-	-
snack foods:		-	-
soft candy:		-	-
soups:		-	-
sugar substitutes:		-	-
sweet sauces:		-	-

Safety references

EPI System: View

EPA Substance Registry Services (TSCA):9000-72-0

EPA ACToR:Toxicology Data

EPA Substance Registry Services (SRS):Registry

National Institute of Allergy and Infectious Diseases:Data

styrax tonkinensis craib ex hartwiss resin

Chemidplus:0009000720