9-甲氧基-9-氧代壬酸

9-甲氧基-9-氧代壬酸 - Names and Identifiers

Name	methyl hydrogen azelate
Synonyms	AI3-08581 MONO-METHYL AZELATE methyl hydrogen azelate METHYL HYDROGEN AZELATE Methyl hydrogen azelate MONOMETHYL NONANEDIOATE MONO-METHYL NONANEDIONATE 8-Carbomethoxyoctanoic acid 9-methoxy-9-oxononanoic acid 9-Methoxy-9-oxononanoic acid AZELAIC ACID MONOMETHYL ESTER 8-METHOXYCARBONYLOCTANOIC ACID NONANEDIOIC ACID MONOMETHYL ESTER Nonanedioic acid, monomethyl ester
CAS	2104-19-0
EINECS	218-275-2
InChI	InChI=1/C10H18O4/c1-14-10(13)8-6-4-2-3-5-7-9(11)12/h2-8H2,1H3,(H,11,12)

9-甲氧基-9-氧代壬酸 - Physico-chemical Properties

Molecular Formula	C10H18O4
Molar Mass	202.25
Density	1.045 g/mL at 20 °C (lit.)
Melting Point	22-24 °C (lit.)
Boling Point	159-160 °C/3 mmHg (lit.)
Flash Point	>230°F
Water Solubility	Not miscible in water.
Solubility	Chloroform, DMSO (Slightly), Methanol (Slightly)
Vapor Presure	6.72E-05mmHg at 25°C
Appearance	Solid
Color	Colourless to Pale Yellow Oil to Low-Melting
BRN	1775786
pKa	4.77±0.10(Predicted)
Storage Condition	Sealed in dry,Store in freezer, under -20°C
Refractive Index	n20/D 1.446(lit.)
MDL	MFCD00004431

9-甲氧基-9-氧代壬酸 - Risk and Safety

Safety Description	24/25 - Avoid contact with skin and eyes.
WGK Germany	3
HS Code	29171390

9-甲氧基-9-氧代壬酸 - Introduction

methyl hydrogen azelate, also known as polycarboxylate, is an important high molecular polymer. It has the following properties:

1. Physical properties: methyl hydrogen azelate is colorless or light yellow liquid, with good solubility, soluble in water, alcohol and organic solvents.

2. Chemical properties: methyl hydrogen azelate is an ester compound with high stability and chemical resistance. It can be hydrolyzed to azelaic acid and methanol.

The main uses of methyl hydrogen azelate include:

1. Polymer preparation: methyl hydrogen azelate can be polymerized with other monomers to prepare high molecular polymers. These polymers have excellent properties and can be used in various industries such as coatings, glues, plastics, fibers, etc.

2. Surfactant: methyl hydrogen azelate can be used as emulsifier, dispersant and wetting agent, widely used in cosmetics, detergents and personal care products and other fields.

The methods for preparing methyl hydrogen azelate are mainly as follows:

1. Transesterification reaction: transesterification reaction is carried out with nonyl alcohol and methyl formate in the presence of acid catalyst to obtain methyl hydrogen azelate.

2. Direct esterification reaction: esterification of nonanol and formate under the action of acid catalyst to generate methyl hydrogen azelate.

Note the following safety information when using and handling methyl hydrogen azelate:

1. methyl hydrogen azelate is irritating and should be rinsed immediately when in contact with skin and eyes.

2. Avoid inhaling the vapor of methyl hydrogen azelate and use it in a well-ventilated place.

3. methyl hydrogen azelate has low toxicity, but long-term and large-scale exposure may have an impact on health, and excessive exposure should be avoided.

4. When storing and transporting methyl hydrogen azelate, keep it away from fire and high temperature to prevent the danger of combustion and explosion.

Please note that before using methyl hydrogen azelate or any chemical, you should carefully read and follow the relevant safety procedures.

Last Update：2024-04-09 21:21:28