94-18-8

Basic information

• Product Name: Benzylparaben
• Synonyms: Benzoicacid,4-hydroxy-,phenylmethylester;Benzyl Parasept;Benzyl Tegosept;Nipabenzyl;Parosept;p-Hydroxybenzoic acid benzyl ester;Solbrol Z;BASEPTOL
• CAS NO: 94-18-8
• Molecular Formula: C₁₄H₁₂O₃
• Molecular Weight: 228.24
• EINECS: 202-311-9
• Product Categories: Aromatic Esters;Color Former & Related Compounds;Developer;Functional Materials;Aromatics
• Mol File: 94-18-8.mol
• Article Data: 30

Chemical Properties

• Melting Point: 109-112 °C(lit.)
• Boiling Point: 170℃
• Flash Point: 167℃
• Appearance: /Powder
• Density: 1.1799
• Vapor Pressure: 1.24E-06mmHg at 25°C
• Refractive Index: 1.5805
• Storage Temp.: Refrigerator
• Solubility: ethanol: soluble25mg/mL, clear, colorless
• PKA: 8.18±0.15(Predicted)
• Water Solubility: 92mg/L(25 oC)
• BRN: 2115995
• CAS DataBase Reference: Benzylparaben(CAS DataBase Reference)
• NIST Chemistry Reference: Benzylparaben(94-18-8)
• EPA Substance Registry System: Benzylparaben(94-18-8)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39
• RIDADR: 3077
• WGK Germany: 3
• RTECS: DH2691000
• TSCA: Yes
• HazardClass: IRRITANT
• PackingGroup: III
• Hazardous Substances Data: 94-18-8(Hazardous Substances Data)

Usage

Chemical Properties

white to light yellow fine powder

Uses

Different sources of media describe the Uses of 94-18-8 differently. You can refer to the following data:
1. preservative in cosmetics and pharmaceutical preparations
2. Benzyl 4-hydroxybenzoate may be used as internal standard for the simultaneous analysis of non-steroidal anti-inflammatory drugs in human plasma and urine using microextraction by packed sorbent and HPLC method. It may be employed as internal standard for the HPLC determination of rutin, kaempferol, genistein, formononetin and biochanin A in Ononis spinosu roots.

General Description

Benzyl 4-hydroxybenzoate (Paraben, Benzyl Paraben) is an ester of para-hydroxy benzoic acid. It has been added to various cosmetics and personal care products as a preservative. Its quantification in cosmetics has been reported by HPLC methods. Microwave assisted synthesis of benzyl 4-hydroxybenzoate by reaction between (4-hydroxybenzoic) acid and K2CO3 in presence of phase transfer catalyst has been reported. It is an endocrine disrupting chemical (EDC). It is a promising candidate for use in pharmaceutical and personal care products. Its visible-light assisted photosensitized degradation in homogeneous aqueous solution of 4,4′,4′′,4′′′-(porphine-5,10,15,20-tetrayl)tetrakis(benzenesulphonic acid) has been investigated.

Flammability and Explosibility

Notclassified

Contact allergens

This substance is one of the parabens family. Parabens are esters formed by p-hydroxybenzoic acid and an alcohol. They are largely used as biocides in cosmetics and toiletries, medicaments, or food. They have synergistic power with other biocides. Parabens can induce allergic contact dermatitis, mainly in chronic dermatitis and wounded skin.

InChI:InChI=1/C14H12O3/c15-13-8-6-12(7-9-13)14(16)17-10-11-4-2-1-3-5-11/h1-9,15H,10H2

Upstream product

• 31139-36-3 dibenzyl dicarbonate 
• 99-96-7 4-hydroxy-benzoic acid 
• 100-44-7 benzyl chloride 
• 2978-10-1 O-benzyl-N,N'-diisopropylisourea 
• 1112-67-0 tetrabutyl-ammonium chloride 
• 114-63-6 sodium 4-hydroxybenzoate 
• 56442-22-9 benzyl 4-benzyloxybenzoate 
• 100-39-0 benzyl bromide 
• 184000-11-1 {4-[(benzyloxy)carbonyl]phenyl}boronic acid 
• 100-51-6 benzyl alcohol 
• 108-88-3 toluene 
• 24285-46-9 benzyl-4-(p-nitrobenzoyloxy)benzoate 
• 99-76-3 methyl 4-hydroxylbenzoate 

Downstream Products

• 123015-44-1 benzyl 4-hydroxy-3-nitrobenzoate 
• 70884-51-4 5-Nitro-1,2,3,4-tetrahydro-naphthalene-1-carboxylic acid 4-benzyloxycarbonyl-phenyl ester 
• 70884-77-4 7-Nitro-1,2,3,4-tetrahydro-naphthalene-1-carboxylic acid 4-benzyloxycarbonyl-phenyl ester 
• 63787-31-5 benzyl 4-(2-methoxy-2-oxoethoxy)benzoate 
• 78880-56-5 4-((2S,3R,4S,5R,6R)-3,4,5-Tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-benzoic acid benzyl ester 
• 78880-56-5 4-((2R,3R,4S,5R,6R)-3,4,5-Tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-benzoic acid benzyl ester 
• 142504-47-0 ethyl 11-<4-(benzyloxycarbonyl)phenyloxy>undecanoate 
• 125150-65-4 benzyl 4-(4'-octoxybiphenyl-4-carbonyloxy)benzoate 
• 129236-20-0 4-[(benzyloxy)carbonyl]phenyl 4-octyloxybenzoate 
• 124501-13-9 4-[(benzyloxy)carbonyl]phenyl 4-decyloxybenzoate 
• 142504-46-9 ethyl <2-<2-<2-<4-(benzyloxycarbonyl)phenyloxy>ethoxy>ethoxy>ethoxy>acetate 
• 78718-46-4 4'-benzyloxycarbonylphenyl trans-4-guanidinomethylcyclohexanecarboxylate hydrochloride 
• 27686-87-9 4-[4-(Benzyloxycarbonylamino-methyl)-cyclohexanecarbonyloxy]-benzoic acid benzyl ester 
• 180678-34-6 benzyl 4-(3,4-di-n-decyloxybenzoyloxy)benzoate 

Relevant articles and documents

Esterification of sodium 4-hydroxybenzoate by ultrasound-assisted solid-liquid phase-transfer catalysis using dual-site phase-transfer catalyst

The catalytic esterification of sodium 4-hydroxybenzoate with benzyl bromide by ultrasound-assisted solid-liquid phase-transfer catalysis (U-SLPTC) was investigated using the novel dual-site phase-transfer catalyst 4,4′-bis(tributylammoniomethyl)-1,1′-bip

A simple and effective synthesis of 3- And 4-((Phenylcarbamoyl)oxy)benzoic acids

Phenserine, posiphen, tolserine and cymserine and its derivatives are experimental Alzheimer's disease drugs that contain a phenyl phenylcarbamate moiety that is responsible for their anti-Alzheimer activities. We have developed a simple (3 steps) and effective (overall yields 76-90%) method for preparing 3- and 4-((phenylcarbamoyl)oxy)benzoic acids which can be reacted with amines to produce phenyl phenylcarbamate moiety containing amides as new potential anti-Alzheimer disease drugs. The synthesized carboxylic acids are thus important building blocks with potential use in medicinal chemistry and drug discovery.

Malachite green artificial antigen and antibody and its preparation method and application

The invention provides preparation of malachite green artificial antigen and antibody, and relates to preparation of artificial hapten, artificial antigen and antibody of a triphenylmethane chemical substance malachite green. By adopting the preparation method, the problems of complex process, high cost and low analysis speed of the traditional physical and chemical analysis method are overcome. A simple, convenient, quick, sensitive and accurate enzyme immunoassay is provided. The method comprises the following steps: taking 4-[bi(4-dimethylamino)phenyl]methyl benzoic acid and 5-{4-[bi-(4-dimethylamino)phenyl]methyl} phenyl valeric acid as haptens to be respectively connected with carrier proteins such as hemocyanin, ovalbumin and the like to synthetize artificial antigen; carrying out animal immunization, taking blood, separating out antiserum, and purifying, so as to prepare the antibody. The antibody is stable, and has good specificity and sensitivity, and a good application prospect, and can be applied to fast immunodetection of the malachite green.