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99-50-3 Suppliers

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Product FOB Price Min.Order Supply Ability Supplier
99-50-3 3,4-Dihydroxybenzoic acid 98%
Cas No: 99-50-3
USD $ 164.8-223.9 / Kilogram 1 Kilogram 1 Metric Ton/Month Henan Bizhi Chemical Tech Co Ltd Contact Supplier
3,4-Dihydroxybenzoic acid Manufacturer/High quality/Best price/In stock
Cas No: 99-50-3
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
3,4-Dihydroxybenzoic acid / Protocatehuic acid
Cas No: 99-50-3
USD $ 2.0-2.0 / Kilogram 1 Kilogram 100 Metric Ton/Year Hebei yanxi chemical co.,LTD. Contact Supplier
High quality 3,4-Dihydroxybenzoic acid CAS 99-50-3 99% with best price
Cas No: 99-50-3
USD $ 230.0-260.0 / Kilogram 1 Kilogram 5000 Kilogram/Month Kono Chem Co.,Ltd Contact Supplier
High purity 99-50-3 4-(4-Bromopyrazol-1-yl)piperidine-1-carboxylic acid tert-butyl ester
Cas No: 99-50-3
USD $ 100.0-500.0 / Gram 1 Gram 99999 Gram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
High quality 3,4-Dihydroxybenzoicacid supplier in China
Cas No: 99-50-3
No Data No Data No Data Simagchem Corporation Contact Supplier
Cas No: 99-50-3
No Data 10 Milligram Amadis Chemical Co., Ltd. Contact Supplier
Protocatechuic acid
Cas No: 99-50-3
No Data No Data No Data Chemwill Asia Co., Ltd. Contact Supplier
3,4-Dihydroxybenzoic acid
Cas No: 99-50-3
No Data 1 Kilogram 10 Kilogram/Day HENAN SUNLAKE ENTERPRISE CORPORATION Contact Supplier
3,4-Dihydroxybenzoic acid
Cas No: 99-50-3
USD $ 1.0-2.0 / Kilogram 1 Kilogram 200 Metric Ton/Month Crovell Biotech (Hebei) Co., Ltd. Contact Supplier

99-50-3 Usage


A phenolic acid antioxidant and chemopreventive agent

Chemical Properties

white to light yellow crystal powder


3,4-Dihydroxybenzoic Acid is a metabolite of polyphenols such as Phloretin (P339000) and Quercetin (Q509500).


ChEBI: A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4.

99-50-3 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
USP (1579310)  Protocatechuicacid  United States Pharmacopeia (USP) Reference Standard 99-50-3 1579310-25MG 4,662.45CNY Detail
Sigma-Aldrich (03930590)  Protocatechuicacid  primary pharmaceutical reference standard 99-50-3 03930590-50MG 1,930.50CNY Detail
Sigma-Aldrich (08992)  3,4-Dihydroxybenzoicacid  analytical standard 99-50-3 08992-50MG 1,088.10CNY Detail
Alfa Aesar (B24016)  3,4-Dihydroxybenzoic acid, 97%    99-50-3 500g 5594.0CNY Detail
Alfa Aesar (B24016)  3,4-Dihydroxybenzoic acid, 97%    99-50-3 100g 1402.0CNY Detail
Alfa Aesar (B24016)  3,4-Dihydroxybenzoic acid, 97%    99-50-3 25g 444.0CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name 3,4-dihydroxybenzoic acid

1.2 Other means of identification

Product number -
Other names 4-Carboxy-1,2-dihydroxybenzene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:99-50-3 SDS

99-50-3Upstream product

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