beta-Sitosterol sulfate
Time: 2016-10-01 23:27:16

beta-Sitosterol sulfate

Synonyms

beta-Sitosteryl sulphate;

Cholest-5-en-3-beta-ol, 24-beta-ethyl-, sulfate salt (1:1);

Category

Anionic Surfactant

> Sulfate

>> Cyclic Alcohol Sulfate

>>> Alicyclic Enol Sulfate

>>>> Steroid Sulfate

Chemical Numbering System

CASRN: 24815-93-8

EINECS: N/A

Molecular Formula & Molecular Weight

Molecular Formula: C29H50O4S; C29H50O4S

Molecular Weight: 494.77

Structure

Properties

Appearance    (1), white powder.

Solubility    slightly soluble in water.

Stability    stable.

Risk    Solid form: flammable material; irritation, irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.

GHS (Rev.7) label:  

Ecology    may be hazardous to environment. Water body should be given special attention.

Biodegradability    biodegradable.

Characteristics    excellent emulsifying, dispersing, solubilizing, lubricating abilities.

Note    (1), Avoid using in children care products, such as: skin care products.

Synthesis

Obtained by esterification of beta-sitosterol and sulfur trioxide.

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Actives, %, ≥

90.0

Test Methods

(1), Actives

GB/T 5173 Surface active agents and detergents-Determination of anionic-active matter by direct two-phase titration procedure

ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure

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, 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 emulsifying agent, dispersing agent.

Manufacturers