產品資訊 - 3 4-dihydroxybenzoic acid 99% CAS NO 99-50-3->active pharmaceutical ingredient

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3 4-dihydroxybenzoic acid 99% CAS NO 99-50-3

產品分類 :

化學->活性醫療成份

3 4-dihydroxybenzoic acid 99% CAS NO 99-50-3

產品規格

Model No:	cy99-50-3

Country	CN
Brand	cy
Packing	25kg
Minimum Order	25
Payment Term	L/C,T/T

產品描述

Protocatechuic acid


Chinese alias: catechol -4- carboxylic acid; 3,4- two hydroxybenzoic acid;


English Name: 3,4-dihydroxybenzoic acid


English aliases: 4-Carboxy-1,2-dihydroxybenzene; Protocatehuic acid; protocatechuate; 3,4-dihydroxy-benzoic acid; 4,5-Dihydroxybenzoic acid;


Benzoic acid, 3,4-dihydroxy-; 3,4-Dihydroxybenzoic acid; protochatechuic acid; 3,4-dihydroxybenzoate; protocatechuic acid; Benzoic acid, 3,4-dihydroxy;


CAS: 99-50-3


Molecular formula: C7H6O4


Molecular weight: 154.12000


Precise quality: 154.02700


PSA:77.76000


LogP:0.79600


Physicochemical properties


Appearance and properties: white to yellowish crystalline powder.


Density: 1.559 g/cm3


Melting point: 197-200 °C(Dec.) (lit.)


Boiling point: 410.7°C at 760 mmHg


Stability: Stable. Incompatible with strong oxidizing agents, strong bases.


Store conditions: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.


security information


Symbol:


GHS07


Signal word: warning


Hazard statement: H315; H319; H335


Cautionary statement: P261; P305 + P351 + P338


Customs Code: 2918290000


WGK Germany:3


Danger category code: R36/37/38


Safety instructions: S26-S36-S37/39


RTECS: UL0560000


Dangerous goods sign: Xi


purpose


This product is used as food additive.
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