ChemicalBook > Product Catalog > Chemical Reagents > Organic reagents > Aromatic acids > 2,4-Dihydroxybenzoic acid
2,4-Dihydroxybenzoic acid
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Uses Toxicity Usage limits Chemical properties Application Preparation
Safety
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- Product Name:2,4-Dihydroxybenzoic acid
- CAS:89-86-1
- MF:C7H6O4
- MW:154.12
- EINECS:201-946-9
- Mol File:89-86-1.mol
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2,4-Dihydroxybenzoic acid Chemical Properties
- Melting point:208-211 °C (dec.)(lit.)
- Boiling point:237.46°C (rough estimate)
- Density 1.3725 (rough estimate)
- FEMA 3798 | 2,4-DIHYDROXYBENZOIC ACID
- refractive index 1.6710 (estimate)
- Flash point:200 °C
- storage temp. Store below +30°C.
- solubility 8g/l
- form Crystalline Powder
- pka3.11, 8.55, 14.0(at 25℃)
- color Cream to slightly beige or pink
- Water Solubility 8 g/L (20 ºC)
- JECFA Number908
- Merck 14,8157
- BRN 1946213
- InChIKeyUIAFKZKHHVMJGS-UHFFFAOYSA-N
- CAS DataBase Reference89-86-1(CAS DataBase Reference)
- NIST Chemistry Reference2,4-Dihydroxybenzoic acid(89-86-1)
- EPA Substance Registry System2,4-Resorcylic acid (89-86-1)
- Hazard Codes Xi
- Risk Statements 36/37/38
- Safety Statements 26-36-37/39
- WGK Germany 1
- RTECS VH3708050
- TSCA Yes
- HS Code 29182990
- Language:EnglishProvider:beta-Resorcylic acid
- Language:EnglishProvider:SigmaAldrich
- Language:EnglishProvider:ACROS
- Language:EnglishProvider:ALFA
2,4-Dihydroxybenzoic acid Usage And Synthesis
- Uses2,4-Dihydroxybenzoic acid is a useful synthetic intermediate. An organic building block for plastics and rubber products.
- ToxicityGRAS (FEMA).
- Usage limitsFEMA (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 propertiesIt 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
- PreparationIt is derived from the hydroxylation of resorcinol.
- Chemical Propertiescream to slightly beige or pink crystalline powder
- Chemical PropertiesDihydroxybenzoic acid is a colorless solid and is used as a flavor modifier.
- OccurrenceReported present in avocados, beer, red wine, roast coffee, sherry, smoked sausage and white wine
- UsesIntermediate for dyestuffs and drugs; spot test reagent for iron.
- PreparationPrepared from resorcinol and potassium bicarbonate in glycerol or water by heating and passing carbon dioxide through the mixture.
- Purification MethodsCrystallise the acid from water. [Beilstein 10 IV 1420.]
2,4-Dihydroxybenzoic acid Preparation Products And Raw materials
- Raw materialsSodium bicarbonateResorcine
- Preparation Products2,6-Dihydroxybenzoic acid 4-Methoxysalicylic acid2,4-Dimethoxybenzoic acid
- phosphoric acid 2,5-DIHYDROXYBENZOIC ACID 2,3-DIHYDROXYBENZOIC ACID,DIHYDROXYBENZOIC ACID, 2,3- Methyl 3,4-dihydroxybenzoate Butylparaben 3-Hydroxybenzoic acid 4-Hydroxybenzoic acid Methylparaben 3,4-DIHYDROXYBENZOIC ACID N-HYDRATE,3,4-DIHYDROXYBENZOIC ACID Ethyl 2-(Chlorosulfonyl)acetate 3,5-DIHYDROXYBENZOIC ACID 2'-Hydroxy-3-phenylpropiophenone 2,6-DIHYDROXYBENZOIC ACID Salicylic acid Ascoric Acid Citric acid Folic acid Glycine
2,4-Dihydroxybenzoic acidSupplierMore
- Company Name:- Gold
- Tel:17310985352
- Email:17310985352@163.com
- Products Intro:CAS:89-86-1
Purity:99 Package:1kg;25kg;1t
- Company Name:Hangzhou Beno Chemical Co., Ltd. Gold
- Tel:17342059697
- Email:baey@beno-chem.com
- Products Intro:Product Name:2,4-Dihydroxybenzoic acid
CAS:89-86-1
Purity:99% Package:25kg
- Company Name:Changzhou Sunchem Pharmaceutical Chemical Material Co.,Ltd. Gold
- Tel:15861192208 0519-85195575-
- Email:850305@sunkechem.com;850305@sunkechem.com;850306@sunkechme.com
- Products Intro:Product Name:2,4-Dihydroxybenzoic acid
CAS:89-86-1
Purity:99.0% Package:25KG
- Company Name:Changzhou josenchem Pharmaceutical Chemical Material Co.,Ltd. Gold
- Tel:13338194135 519-85286950-
- Email:info@josenchem.com
- Products Intro:Product Name:2,4-Dihydroxybenzoic acid
CAS:89-86-1
Purity:99.0%
- Company Name:Wuhan Zeuschem. Co. Ltd. Gold
- Tel:027-88866057-18071542427-18071545453-18071546827-18062648743
- Email:1735832116@qq.com
- Products Intro:Product Name:2,4-Dihydroxybenzoic acid
CAS:89-86-1
Purity:99%