9000-05-9 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 9000-05-9 differently. You can refer to the following data:
1. 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.
2. 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.
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).
Check Digit Verification of cas no
The CAS Registry Mumber 9000-05-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 9000-05:
(6*9)+(5*0)+(4*0)+(3*0)+(2*0)+(1*5)=59
59 % 10 = 9
So 9000-05-9 is a valid CAS Registry Number.
