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2,3-Dihydroxybenzoic acid

2,3-Dihydroxybenzoic acid
2,3-Dihydroxybenzoic acid structure
Chemical Name:
2,3-Dihydroxybenzoic acid
DOBK;2,3 DHB;NSC 27435;Pyrocatechuic acid;2-pyrocatechuicacid;RARECHEM AL BE 0035;TIMTEC-BB SBB008367;2,3-Dihydroxybenzoic;O-PYROCATECHUIC ACID;3-hydroxysalicylicacid
Molecular Formula:
Formula Weight:
MOL File:

2,3-Dihydroxybenzoic acid Properties

Melting point:
204-206 °C(lit.)
Boiling point:
1,542 g/cm3
refractive index 
1.6400 (estimate)
storage temp. 
methanol: soluble50mg/mL, clear to faintly hazy, orange
Crystalline Powder
pK1:2.98;pK2:10.14 (30°C)
Beige to brown or pinkish-gray
Water Solubility 
Soluble in water, methanol and dimethyl sulfoxide.
CAS DataBase Reference
303-38-8(CAS DataBase Reference)
NIST Chemistry Reference
Benzoic acid, 2,3-dihydroxy-(303-38-8)
EPA Substance Registry System
Benzoic acid, 2,3-dihydroxy-(303-38-8)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  2
RTECS  DG8576490
Hazard Note  Irritant
HS Code  29182900
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

2,3-Dihydroxybenzoic acid price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 126209 2,3-Dihydroxybenzoic acid 99% 303-38-8 5g $48.5 2018-11-13 Buy
TCI Chemical C0054 2,3-Dihydroxybenzoic Acid >98.0%(HPLC)(T) 303-38-8 5g $35 2018-11-22 Buy
TCI Chemical C0054 2,3-Dihydroxybenzoic Acid >98.0%(HPLC)(T) 303-38-8 25g $122 2018-11-22 Buy
Alfa Aesar A10144 2,3-Dihydroxybenzoic acid, 98% 303-38-8 50g $295 2018-11-13 Buy
Alfa Aesar A10144 2,3-Dihydroxybenzoic acid, 98% 303-38-8 10g $71.4 2018-11-13 Buy

2,3-Dihydroxybenzoic acid Chemical Properties,Uses,Production

Chemical Properties

Pale Brownish to Red Brownish Crystalline Powder


2,3-Dihydroxybenzoic Acid is a selected phenol as MMP (Matrix Metalloproteinase) inhibitor.


ChEBI: A dihydroxybenzoic acid that is benzoic acid substituted by hydroxy groups at positions 2 and 3. It occurs naturally in Phyllanthus acidus and in the aquatic fern Salvinia molesta.

2,3-Dihydroxybenzoic acid Preparation Products And Raw materials

Raw materials

Preparation Products

2,3-Dihydroxybenzoic acid Suppliers

Global( 263)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 CHINA 3210 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32606 55
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20177 58
Accela ChemBio Inc.
(+1)-858-876-1948 United States 12233 58
career henan chemical co
+86-371-86658258 CHINA 19975 58
Nanjing Vital Chemical Co., Ltd. Please Send Email QQ:18652950785
025-87193546 China 4459 65
Nanjing Vital Chemical Co., Ltd. Please Send Email QQ:729358435
025-87193546 China 9149 60
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15901 69
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30273 84

View Lastest Price from 2,3-Dihydroxybenzoic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-24 2,3-Dihydroxybenzoic acid
US $1.00 / KG 1KG 98% 100KG career henan chemical co

2,3-Dihydroxybenzoic acid Spectrum

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