1,6-Heptadiene-3,5-dione, 1,7-bis(4-hydroxyphenyl)-
Time: 2019-09-04 13:28:31

1,6-Heptadiene-3,5-dione, 1,7-bis(4-hydroxyphenyl)-

Synonyms

Bisdemethoxycurcumin;

Category

Non-ionic surfactant

> Phenol

> Keto-group Phenol

Chemical Numbering System

CASRN: 24939-16-0

EINECS: N/A

Molecular Formula & Molecular Weight

Molecular Formula: C19H16O4

Molecular Weight: 308.33

Structure

Properties

Appearance    (1), orange-yellow powder.

Odor    curcuma-like special odor.

Solubility    slightly soluble in water. Soluble in ethanol.

Stability    stable. Easily oxidized.

Risk    Solid 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 (Rev.7) label:  

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

Biodegradability    biodegradable.

Characteristics    excellent anti-oxidizing, anti-inflammatory, anti-virus, antibacterial, dispersing abilities. Sensitive to iron, copper.

Synthesis

 

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Solid

Actives, %, ≥

90.0

Test Methods

(1), Actives

GB/T 13173 Surface active agents - Detergents - Testing methods

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, Product standards

(1), Chinese standards

(1a), GB 1886.76 Food safety national standard -- Food additive -- Curcumin

4, Further explanation

(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.

(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.

Major Uses

1, Typical applications

Use as antioxidant.

2, Personal care products

Conditioning agent, antioxidant in personal care products.

3, Food

Use as food additive (coloring agent).

Manufacturers