3,5-Dihydroxybenzyl alcohol Property

Melting point:

182-186 °C (dec.) (lit.)

Boiling point:

216.62°C (rough estimate)

Density 

1.2127 (rough estimate)

refractive index 

1.4638 (estimate)

storage temp. 

Inert atmosphere,2-8°C

solubility 

Soluble in DMSO, methanol.

form 

Crystalline Powder

pka

9.23±0.10(Predicted)

color 

Off-white to beige-pink or gray

BRN 

2326351

InChI

InChI=1S/C7H8O3/c8-4-5-1-6(9)3-7(10)2-5/h1-3,8-10H,4H2

InChIKey

NGYYFWGABVVEPL-UHFFFAOYSA-N

SMILES

C1(O)=CC(CO)=CC(O)=C1

CAS DataBase Reference

29654-55-5(CAS DataBase Reference)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-37/39

WGK Germany 

3

RTECS 

DO1400000

HS Code 

29052900

Toxicity

mouse,LD50,intravenous,750mg/kg (750mg/kg),British Journal of Pharmacology and Chemotherapy. Vol. 22, Pg. 221, 1964.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

3,5-Dihydroxybenzyl alcohol Chemical Properties,Usage,Production

Description

3,5-dihydroxybenzyl alcohol: a kind of critical medicine intermediate and chemical intermediate
3,5-Dihydroxybenzyl alcohol is a colourless product with a melting point of 182~186℃. It is soluble in water, ethanol, ether, THF and other polar solvents. This compound is a vital pharmaceutical and chemical intermediate and an essential raw material for organic synthesis. It can be used as a raw material to prepare pseudo-choleretic drugs with intellectual property rights in my country, such as pseudo-amyloid, bonicon, bromoprim, and resveratrol. It has antibacterial, anti-inflammatory, anti-tumour, antioxidant, anti-shock, and coronary heart disease prevention and treatment biological activities. It is mainly isolated from Veratrum ussuri and Veratrum hairy spike produced in Northeast China; it can also be used to synthesize pharmaceutical intermediates such as 3,5-dihydroxybenzaldehyde and 3,5-dihydroxybenzoyl ethyl ketone, and can also be used as an additive in the field of fine chemicals such as daily chemicals.

Chemical Properties

White to light yellow crystal powder

Uses

3,5-Dihydroxybenzyl Alcohol is a used as a dendrimer building block.

Uses

3,5-Dihydroxybenzyl alcohol may be used as monomer for the synthesis of a series of monodisperse dendritic polyether macromolecules.?It may be employed in the synthesis of dimethylsilyl linked dihydroxybenzyl alcohol based dendrimers.

General Description

Aggregation behavior of 3,5-dihydroxybenzyl alcohol based dendritic polymers has been investigated by dynamic light scattering and transmission electron microscopy. Preparation of dendritic polyether macromolecules based on 3, 5-dihydroxybenzyl alcohol building block and having carboxylate groups as chain-ends has been described.

Synthesis

Preparation of 3,5-dihydroxybenzyl alcohol: Add 50mL THF to a 250mL three-necked flask, add 3.15g (0.082mol) NaBH, 2.38g (0.01mol) 3,5-Diacetoxybenzoic acid, control the temperature at 0 degrees in an ice-water bath, slowly drop 60ml THF solution containing 9g (0.036mol) I2, and then add 4.76g (0.02mol) of the product from the previous step after the dropwise addition, heat to reflux, and track the reaction with a plate. After the reaction is completed, concentrate to dryness under reduced pressure, add 100mL saturated NaHCO solution, extract with ether, combine the organic layers, dry with anhydrous magnesium sulfate, filter, concentrate, and recrystallize with hot water to obtain 3.5g white crystals with a yield of 83.2%.