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BENZOIN

Basic information Safety Supplier Related

BENZOIN Basic information

Product Name:
BENZOIN
Synonyms:
  • benjamingum
  • Benzoinmalasia
  • Benzoinresinoid
  • Benzoinresinoid,siam
  • 2-HYDROXY-1,2-DIPHENYETHANONE
  • 2-HYDROXY-1,2-DIPHENYLETHANONE
  • Gumbenzoinsumatra
  • benzoin resin absolute
CAS:
9000-05-9
MF:
C14H12O2
MW:
212.24
EINECS:
232-523-7
Product Categories:
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Mol File:
9000-05-9.mol
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BENZOIN Chemical Properties

Melting point:
134-138 °C(lit.)
Boiling point:
194 °C12 mm Hg(lit.)
FEMA 
2133 | BENZOIN RESINOID
color 
An amber coloured resinoid with a characteristic balsamic odour. Both Siam and Sumatra benzoins contain vanillin and esters of benzoic and cinnamic acids
Odor
at 100.00 %. sweet spicy balsam aromatic resinous phenolic
Odor Type
balsamic
Merck 
13,4594
CAS DataBase Reference
9000-05-9(CAS DataBase Reference)
EPA Substance Registry System
Gum benzoin (9000-05-9)
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Safety Information

Safety Statements 
24/25
WGK Germany 
2
RTECS 
DI1590000
Hazardous Substances Data
9000-05-9(Hazardous Substances Data)
Toxicity
The acute oral LD50 was reported as 10 g/kg in the rat . The acute dermal LD50 in the rabbit was reported as 8.87 g/kg

MSDS

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BENZOIN Usage And Synthesis

Chemical Properties

Trees of this species are about 15 m tall. Resin flows from the incision made in the bark. S. tonkinensis (Siam benzoin) grows extensively in Laos and Tonkin. S. benzoin Dryand. (Sumatra benzoin) grows in Sumatra and Malaya. Sumatra benzoin is produced commercially in two basic qualities: selected tears and almonds or amygdaloid forms. The size of the tear-shaped pieces allows a further classification into three or four types. The amount of granules (almonds) as compared to the mass allows a classification into three basic qualities. The resins are the parts used. Benzoin has a sweet, balsamic, pleasant odor and an aromatic, acrid, bittersweet taste.

Chemical Properties

Reddish-brown globules; balsamic, vanilla-like odor. Brittle at room temperature but softened by heat. Soluble in warm alcohol and carbon disulfide; insoluble in water.

Physical properties

Sumatra benzoin consists of a grayish-red mass intermixed with yellow pieces somewhat resembling almonds.

Occurrence

Benzoin Siam is obtained from Styrax tonkinensis P. S. mycrothyrsus P. Benzoin Sumatra is derived from Styrax benzoin D. S. benzoides C.(Naves & Mazuyer, 1947).

Uses

Preserving ointments; preparing natural benzoic acid; for fumigating pastilles; in perfumery and cosmetics.

Preparation

The resinoid is obtained by extracting the natural benzoin with benzene and then distilling off the solvent(Naves & Mazuyer, 1947).

Definition

Extractives and their physically modified derivatives. It is a product which may contain resin acids and their esters, terpenes, and oxidation or polymerization products of these terpenes. (Styrax, Styracaceae).

BENZOINSupplier

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