4- hydroxy benzaldehyde

4- hydroxy benzaldehyde

Chinese Name: 4- hydroxy benzaldehyde

English Name: p-Hydroxybenzaldehyde

English alias: 4-Hydroxybenzaldehyde

CAS number: 123-08-0

Molecular formula: C7H6O2

Molecular weight: 122.12

Purity: 98%

Grade: CP

MDL number: MFCD00006939

Beilstein number: 471352

EC number: 204-599-1

Description: p-hydroxybenzaldehyde is a light yellow or white crystalline solid, slightly fragrant smell

Physical parameters

Melting point: 112-116 C (lit.)

The relative density is 1.129 (30/4 C)

Boiling point: the temperature of 246.6 DEG C

Refractive index: 1.57055 (130 C)

Appearance: yellow or light brown powder

Flash point: 101.3 C

Storage and transport: seal shade to avoid light preservation

Safety Terms:

1: avoid contact with skin and eyes.

2 in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

3 wear suitable protective clothing.

Risk terminology

1 irritating to eyes, respiratory system and skin.

Risk description

Danger of code: Xi

Risk level: 36/37/38

Security level: 26-36

Solubility: soluble in ethanol, ethyl ether; ethyl acetate; acetone;, slightly soluble in water (at 30.5 DEG C water solubility is 1.388g/100ml), soluble in benzene (at 65 DEG C solubility in benzene is 3.68g/ml).

Use: used as the polymer and pharmaceutical raw materials, p-hydroxy benzaldehyde is an important intermediate for pharmaceutical industry and perfume industry, abroad is also used for pesticide herbicide bromoxynil and hydroxyl enemy synthetic grass nitriles, and the production of fungicides, photographic emulsifier, nickel brighteners, such as liquid crystal; in the pharmaceutical industry can be used for the synthesis of amoxycillin (amoxicillin), antibacterial synergist trimethoprim (TMP), 3,4,5- trimethoxy benzaldehyde, hydroxy glycine, cefadroxil cefotaxime, artificial Gastrodia elata, farrerol, AI Siluo son; used in the synthesis of vanillin and ethyl vanillin, piperonal, Ding Xiangquan, anisaldehyde and other spices in raspberry ketone in perfumery industry.