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Methylparaben

Methylparaben Suppliers list
Company Name: Spectrum Chemical Manufacturing Corp.  Gold
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Products Intro:Product Name:Methylparaben, NF
CAS:99-76-3
Purity:NF Package:100GM Remarks:ME163
Company Name: Shanghai Excellent Chemical Co., Ltd.  Gold
Tel:0086-21-33559231; 018964673308 qq48685515;Skype: excellentchem
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Products Intro:Product Name:Methylparaben
CAS:99-76-3
Purity:>99% Package:5g;100g;500g;1Kg Remarks:stock
Company Name: J & K SCIENTIFIC LTD.  
Tel:400-666-7788 +86-10-82848833
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Products Intro:Product Name:Methyl 4-hydroxybenzoate
CAS:99-76-3
Purity:99% Package:100G,25G,500G
Company Name: Meryer (Shanghai) Chemical Technology Co., Ltd.  
Tel:+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
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Products Intro:Product Name:Methyl 4-hydroxybenzoate
CAS:99-76-3
Purity:98% Package:100g;500g Remarks:AAA125504
Company Name: INTATRADE GmbH  
Tel:+49 3493/605464
Email:sales@intatrade.de
Products Intro:Product Name:Methyl 4-Hydroxybenzoate (Methyl Paraben)
CAS:99-76-3
Remarks:IS02984
Methylparaben Basic information
Content analysis Toxicity Utilization limitation Chemical properties Application Preparation Category Toxic grading Acute toxicity Flammability hazard characteristics Storage Extinguishing agent
Product Name:Methylparaben
Synonyms:NIPAGIN;NIPAGIN PLAIN;P-HYDROXYBENZOIC ACID METHYL ESTER;RARECHEM AL BF 0098;4-hydroxy-benzoicacimethylester;Abiol;Aseptoform;Benzoic acid, p-hydroxy-, methyl ester
CAS:99-76-3
MF:C8H8O3
MW:152.15
EINECS:202-785-7
Product Categories:Aromatic Esters;Antioxidant;Biochemistry;Color Former & Related Compounds;Developer;Functional Materials;Aromatics;API;Other APIs;Cosmetics
Mol File:99-76-3.mol
Methylparaben Structure
Methylparaben Chemical Properties
Melting point 125-128 °C(lit.)
Boiling point 298.6 °C
density 1,46g/cm
FEMA 2710
Fp 280°C
storage temp. 0-6°C
Water Solubility Slightly soluble in water.
FreezingPoint 131℃
Merck 14,6107
BRN 509801
Stability:Stable. Incompatible with strong oxidizing agents, strong bases.
CAS DataBase Reference99-76-3(CAS DataBase Reference)
NIST Chemistry ReferenceBenzoic acid, 4-hydroxy-, methyl ester(99-76-3)
EPA Substance Registry SystemBenzoic acid, 4-hydroxy-, methyl ester(99-76-3)
Safety Information
Hazard Codes Xi,Xn
Risk Statements 36/37/38-20/21/22
Safety Statements 26-36-24/25
RIDADR UN 2769
WGK Germany 1
RTECS DH2450000
TSCA Yes
HS Code 29182930
Hazardous Substances Data99-76-3(Hazardous Substances Data)
MSDS Information
ProviderLanguage
4-Hydroxybenzoic acid methyl ester English
SigmaAldrich English
ACROS English
ALFA English
Methylparaben Usage And Synthesis
Content analysisMethod one: determinate according to the content analysis method in "butyl p-hydroxybenzoate (07002)". Per mL 1 mol/L sodium hydroxide is equivalent to the product (C8H8O3) 152.2mg.
Method two: Take 0.1 g (accurate to 1 mg) of the sample previously dried on silica gel for 5 h and move into a 300 ml flask with a glass plug. Plus l mol/L sodium hydroxide 10ml, heated in the water bath for 15min. After cooling, add 0.1mol/L potassium bromate 0.00ml, potassium bromide 5.0g and l mol/L hydrochloric acid 30ml. Put 15min in the dark room after sealing. Add potassium iodide 1 g, shake the flask vigorously, with 0.1mol/L sodium thiosulfate titration, with starch test solution (TS-235) as an indicator. Per ml 0.1mol/L potassium bromate is equivalent to the product (C8H8O3) 25.36mg.
ToxicityADI 0~10mg/kg(FAO/WHO,2001).
GRAS(FDA,§184.1490,2000).
LD503000mg/kg(Dog, mouth)
Utilization limitationFAO/WHO (1984): Jam, jelly, 1000mg/kg (single or with benzoate, sorbic acid and potassium sorbate).
EEC(1990,mg/kg): For use in pigment solutions, flavor syrups, coffee extracts, frozen drinks, fruit, glucose and soft drinks, pickled fish, salad, sauce, snack food, concentrated soup and so on, limited to GMP; Beer 70; Snack cereals and soup concentrate 175, the same as "07018 p-hydroxybenzoate".
HACSG is listed as a restricted list.
FDA,§184.1490(2000):0.1%.
Chemical propertiesWhite needle crystal; Slightly soluble in water, easily soluble in ethanol, ether, acetone and other organic solvents.
Application
  • Antioxidants.
  • Antimicrobial agents for medicine and organic synthesis.
  • Anti-mildew in food, cosmetics and pharmaceutical industries.
  • As a preservative antiseptic agents in the pharmaceutical industry, also for organic synthesis and food, spices, film and other preservative additives.
  • Similar products produced by similar production methods, like ethyl p-hydroxybenzoate (paraben B) and propyl p-hydroxybenzoate (Nepalese c), are also disinfectant preservatives.The products are irritating to the skin.
PreparationThe drug is esterified with p-hydroxybenzoic acid and methanol. The p-hydroxybenzoic acid was added to excess methanol to dissolve, stirring and adding concentrated sulfuric acid slowly. After heating and refluxing 10h, pour into the water to precipitate crystallization, then washed with water, sodium carbonate solution and water, finally obtain the crude product. Recrystallize from water or 25% ethanol to obtain finished product. The yield was 85%. Raw material consumption (kg/t): p-hydroxybenzoic acid 1200, methanol 1000.
CategoryToxic Chemicals
Toxic gradingModerate toxicity
Acute toxicityAbdomen-mouse LD50: 960 mg/kg
Flammability hazard characteristicsCombustible, excretes spicy smoke from fireground
StorageVentilated , low temperature and dry warehouse.
Extinguishing agentWater, carbon dioxide, dry powder, sand.
Chemical Propertieswhite crystalline powder
UsesIt is used as preservative in foods, beverages and cosmetics.
DefinitionChEBI: A 4-hydroxybenzoate ester resulting from the formal condensation of the carboxy group of 4-hydroxybenzoic acid with methanol. It is the most frequently used antimicrobial preservative in cosmetics. It occurs naturally in several fruits, particularly in blu berries.
Tag:Methylparaben(99-76-3) Related Product Information
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