ChemicalBook >> CAS DataBase List >>2,4-Dihydroxybenzoic acid

2,4-Dihydroxybenzoic acid

CAS No.
89-86-1
Chemical Name:
2,4-Dihydroxybenzoic acid
Synonyms
2,4-Dhba;2,4-Dihydroxybenzoesure;4-Dihydroxybenzoic acid;2,4-DIHYDROXYBENZOIC ACID / BETA-RESORCYLIC ACID;BRA;Coupler 320;2,4-Dihydrox;-Resorcylicacid;BETA-RESORCYCLIC;B-RESORCYLIC ACID
CBNumber:
CB4467889
Molecular Formula:
C7H6O4
Molecular Weight:
154.12
MDL Number:
MFCD00002451
MOL File:
89-86-1.mol
MSDS File:
SDS
Last updated:2024-12-18 14:08:52

2,4-Dihydroxybenzoic acid Properties

Melting point 208-211 °C (dec.) (lit.)
Boiling point 237.46°C (rough estimate)
Density 1.3725 (rough estimate)
vapor pressure 0Pa at 25℃
refractive index 1.6710 (estimate)
FEMA 3798 | 2,4-DIHYDROXYBENZOIC ACID
Flash point 200 °C
storage temp. Inert atmosphere,Room Temperature
solubility 8g/l
form Crystalline Powder
pka 3.11, 8.55, 14.0(at 25℃)
color Cream to slightly beige or pink
Odor at 100.00?%. mild phenolic
Water Solubility 8 g/L (20 ºC)
JECFA Number 908
Merck 14,8157
BRN 1946213
InChIKey UIAFKZKHHVMJGS-UHFFFAOYSA-N
LogP 0.98 at 23℃ and pH3.5
CAS DataBase Reference 89-86-1(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) 2,4-DIHYDROXYBENZOIC ACID
EWG's Food Scores 1
FDA UNII LU39SC9JYL
NIST Chemistry Reference 2,4-Dihydroxybenzoic acid(89-86-1)
EPA Substance Registry System 2,4-Resorcylic acid (89-86-1)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  1
RTECS  VH3708050
TSCA  Yes
HS Code  29182990
NFPA 704
1
2 0

2,4-Dihydroxybenzoic acid price More Price(31)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D109401 2,4-Dihydroxybenzoic acid 97% 89-86-1 5g $47.5 2024-03-01 Buy
Sigma-Aldrich D109401 2,4-Dihydroxybenzoic acid 97% 89-86-1 100g $51.9 2024-03-01 Buy
TCI Chemical D0568 2,4-Dihydroxybenzoic Acid >98.0%(T) 89-86-1 25g $34 2024-03-01 Buy
TCI Chemical D0568 2,4-Dihydroxybenzoic Acid >98.0%(T) 89-86-1 500g $159 2024-03-01 Buy
Alfa Aesar A13545 2,4-Dihydroxybenzoic acid, 97% 89-86-1 100g $28.6 2024-03-01 Buy
Product number Packaging Price Buy
D109401 5g $47.5 Buy
D109401 100g $51.9 Buy
D0568 25g $34 Buy
D0568 500g $159 Buy
A13545 100g $28.6 Buy

2,4-Dihydroxybenzoic acid Chemical Properties,Uses,Production

Uses

2,4-Dihydroxybenzoic acid is a useful synthetic intermediate. An organic building block for plastics and rubber products.

Toxicity

GRAS (FEMA).

Usage limits

FEMA (mg/kg): cold drink: 450; Meat, dairy, processed vegetables, 100; fudge, gel, pudding, snack food, beverages, breakfast cereals, fats, cheeses, poultry products, fish, spices, sweet sauce, dairy products, meat soup, fruit ice Egg products, jams, jelly, rehydrated vegetables, 500; soup: 250; jelly sugar: 3333; instant coffee and tea: 12.5; sugar substitute: 12500; seasoning spices: 25000.

Chemical properties

It appears as white needle crystal. It will contain crystal water upon crystallization from the water. It appears as an anhydride at 100 ℃. Melting point 218-219 ° C (it has a melting point of 213 ° C upon thermal shock). Soluble in hot water, ethanol, ether. Cooking in water, acid or salt solution will remove carbon dioxide. It exhibits red color upon reaction with ferric chloride.

Application

  • The product has the chemical properties of both resorcinol and salicylic acid. It can be used in chemical reagents for colorimetric determination of iron, titanium and other elements; for organic synthesis, it is mainly used for dyes and pharmaceutical intermediates. 2, 4-dihydroxybenzoic acid is a major raw material during the production of acidic medicated pink 3BM, which consumes 157 kg per ton of dye (by 100%).
  • Used as a dye intermediate, medicine and reagents
  • Used as dyes, pharmaceuticals, pesticide intermediates

Preparation

It is derived from the hydroxylation of resorcinol.

Chemical Properties

Dihydroxybenzoic acid is a colorless solid and is used as a flavor modifier.

Chemical Properties

cream to slightly beige or pink crystalline powder

Occurrence

Reported present in avocados, beer, red wine, roast coffee, sherry, smoked sausage and white wine

Uses

2,4-Dihydroxybenzoic acid is used in Intermediates, Plasticizers, Plastic and Rubber Products, a organic building block.

Uses

Intermediate for dyestuffs and drugs; spot test reagent for iron.

Preparation

Prepared from resorcinol and potassium bicarbonate in glycerol or water by heating and passing carbon dioxide through the mixture.

Purification Methods

Crystallise the acid from water. [Beilstein 10 IV 1420.]

108-46-3
89-86-1
Synthesis of 2,4-Dihydroxybenzoic acid from Resorcinol
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View Lastest Price from 2,4-Dihydroxybenzoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,4-Dihydroxybenzoic acid pictures 2024-12-23 2,4-Dihydroxybenzoic acid
89-86-1
US $6.00 / kg 1kg 99% 2000KG/Month HebeiShuoshengImportandExportco.,Ltd
2, 4-Dihydroxybenzoic Acid pictures 2024-12-23 2, 4-Dihydroxybenzoic Acid
89-86-1
US $99.00-45.00 / kg 1kg 99% 20ton Hebei Zhuanglai Chemical Trading Co Ltd
2,4-Dihydroxybenzoic acid pictures 2024-12-19 2,4-Dihydroxybenzoic acid
89-86-1
US $6.00 / kg 1kg More than 99% 2000KG/Month Hebei Longbang Technology Co., Ltd
p-hydroxysalicylicacid Resorcylic acid, beta -Resorcylicacid SS-RESORCYLIC ACID RESORCYLIC ACID, ALPHA-(RG) 2,4-DHBA 4-Hydroxysalicylic acid 2,4-Dihydroxybenzoic acid, 97% 100GR 2,4-DIHYDROXYBENZOIC ACID pure 2,4-Dihydroxylbenzoic acid 2,4-Dihydroxybenzoic acid,β-Resorcylic acid 2,4-DIHYDROXYBENZOIC ACID FOR SYNTHESIS Dihydroxybenzoic aci 2,4-Dihydroxybenzoic acid Vetec(TM) reagent grade, 97% 2 4-DIHYDROXYBENZENECARBOXYLIC ACID 2,4-DIHYDROXYBENZOIC ACID 2,4-dihydroxy-benzoicaci 4-Carboxyresorcinol 4-Hydroxysalicyicacid Benzoic acid, 2,4-dihydroxy- beta-Resorcinolic acid beta-resorcinolicacid BRA Coupler 320 p-Hydroxysalicylic acid BETA-RESORCYCLIC BETA-RESORCYCLIC ACID BETA-RESORCYLIC ACID B-RESORCYLIC ACID RARECHEM AL BE 0221 RESORCINOL-4-CARBOXYLIC ACID 2,4-Dihydoxybenzoic acid 2 4-DIHYDROXYBENZOIC ACID 97+% 4-HYDROXYSALICYLIC ACID 2,4-Dihydrox Sodium aminosalicylate Impurity 3 2,4-DHBA 4-Hydroxysali 2-(4-nitrophenyl)butanoic acid ethyl ester 2,4-Dihydroxybenzoic Acid > 2,4 – Dihydroxy benzoic Acid -97% (B-Resoreylic Acid 2,4-Dihydroxybenzoesure 2,4-DIHYDROXYBENZOIC ACID / BETA-RESORCYLIC ACID 4-Dihydroxybenzoic acid 2,4-Dhba 2,4 – Dihydroxy benzoic Acid (B-Resoreylic Acid 2,4-Dihydroxybenzoic Acid, ≥ 98.0% 2,4-Dihydroxybenzoic acid,BRA 89-86-1 98-86-1 OH2C6H3COOH Organic Building Blocks CARBOXYLIC ACID Building Blocks Carbonyl Compounds Carboxylic Acids C7 Pyridines ,Halogenated Heterocycles ,Heterocyclic Acids sy Building Blocks