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Methylparaben in Methanol

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CAS No.:

99-76-3

Packaging:

5ml

Price valid (until):

2025-08-31

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Weiyel Inc

Company Type:

Trader

Location:

China

Qualification:

Main Products:

reference material,reference standards,Reference Standard Materials,ICP & ICP-MS Single/Mix Standards,Analytical standards,Lab reagents

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Product Description
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Description

Product Detail

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Items	Specifications


	Stroma	Methanol
	Form	Liquid
	Term of validit	12 Months
	Storage conditions	Refrigerated (2-8°C) and protected from light. It should be equilibrated at room temperature (20±3℃) before use, and shaken well to ensure uniformity. Once the ampoule is opened, it should be used immediately. It should not be used as reference material after being melted and sealed again. Strictly prevent contamination during use.Pay attention to protection when using, avoid inhalation and direct contact with the skin.
	Applications	It is used for quality assurance and quality control in environmental monitoring and analytical testing, as well as for instrument calibration, method validation and technical arbitration.
	Reference material	Quality Control Manual for Pesticide Residue Testing.
	Physical and chemical properties	Character description: white needle-like crystals. The melting point is 131 ℃, and the boiling point is 270-280 ℃ (decomposition). 1g of this product is soluble in 400ml of water or 40ml of warm oil, soluble in alcohol; Ether; Ketone, slightly soluble in benzene and carbon tetrachloride. Production method: It is obtained by esterification of p-hydroxybenzoic acid and methanol. Add p-hydroxybenzoic acid to excess methanol to dissolve, and slowly add concentrated sulfuric acid under stirring. After heating and refluxing for 10 hours, it is poured into water to precipitate crystals and washed with water. Washing with sodium carbonate solution; Wash with water to obtain crude products. The finished product is obtained by recrystallization with water or 25% ethanol. The yield was 85%. Raw material consumption (kg/t) p-hydroxybenzoic acid 1200 methanol 1000 application: used as antiseptic and fungicide in pharmaceutical industry, also used in organic synthesis and food; Spice; Corrosion protection additives such as film. The similar products produced by similar production methods are ethyl p-hydroxybenzoate (paraben B); propyl p-hydroxybenzoate (paraben c), which are also antiseptic drugs. The product is irritating to the skin.

Basic Info

Product Name:

Methylparaben

Other Name:

NIPAGIN PLAIN;P-HYDROXYBENZOIC ACID METHYL ESTER;RARECHEM AL BF 0098;METHYLPARABEN,FCC;METHYLPARABEN,NF;4-HYDROXYBENZOICACIDMETHYLESTER(METHYLPARABEN);4-HYDROXYLMETHYLBENZOATE;Methyl-4-hydroxybenzoat

CAS No.:

99-76-3

Molecular Formula:

C8H8O3

InChIKeys:

LXCFILQKKLGQFO-UHFFFAOYSA-N

Molecular Weight:

152.15

Exact Mass:

152.15

BRN:

509801

EC Number:

202-785-7

TSCA:

TSCA listed

Color/Form:

White to almost white

HScode:

29182930

Categories:

Standard

Characteristics

PSA:

46.5

XLogP3:

Appearance:

White to almost white Crystalline Powder

Density:

1,46g/cm

Melting Point:

125-128 °C (lit.)

Boiling Point:

298.6 °C

Flash Point:

280°C

Refractive Index:

1.4447 (estimate)

Water Solubility:

Slightly soluble in water.

Storage Conditions:

0-6°C

Vapor Pressure:

0.000005 hPa (20 °C)

Toxicity:

ADI 0～10mg/kg(FAO/WHO,2001).GRAS(FDA,§184．1490，2000).LD503000mg/kg(Dog, mouth)

Flammability characteristics:

Flammable, spicy and irritating smoke emitted from the fire

Odor:

odorless or faint char. odor, sl. burning taste

PH:

5.8 (H2O, 20°C) (saturated solution)

PKA:

pKa 8.15(H2O,t =20.0) (Uncertain)

Henrys Law Constant:

4.5×103mol/(m3Pa) at 25℃, HSDB (2015)

Autoignition Temperature:

>600 °C

Critical Temperature & Pressure:

room temp

See More Methylparaben Properties 

Hazard Identification

Classification of the substance or mixture

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	No signal word
Hazard statement(s)	H411 Toxic to aquatic life with long lasting effects
Prevention	P273 Avoid release to the environment.
Response	P391 Collect spillage.
Storage	none
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Keep container tightly closed in a dry and well-ventilated place.

See More Methylparaben Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
reference material,reference standards,Reference Standard Materials,ICP & ICP-MS Single/Mix Standards,Analytical standards,Lab reagents

Location:
Beijing

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$2.5 million-$5 million

Total Employees:
101-200

Year of Establishment:
2012

Certifications:
ISO17034

Weiyel was introduced in 2007. It is a high-tech enterprise integrating labeling, production and sales of reference materials and microbial quality control products. It has more than 200 professional laboratory researchers.Weiyel is committed to accurate standard measurement. Our mission is to provide one-stop reference material procurement services and empower basic scientific research and testing application research.

It has independently developed more than 30,000 kinds of reference materials, and its products cover many fields such as food, chemical products, environmental chemistry, microorganisms, geology and minerals, building materials, clinical medicine and pharmaceuticals.

Its brand "BNCC" is a member of the World Federation for Culture Collection (WFCC). It specializes in providing a series of products such as microbial strains, experimental cells, and microbial quality control samples. It also provides customized services such as quantitative strains, competent cells, genomic DNA, and nucleic acid reference products.

Weiyel has many branches and offices around the world including Hong Kong, the United States, and Japan. Currently, it has served 3,000+ testing institutions in more than 60 countries including the United States, Germany, Russia, India, and Indonesia, covering food testing, environmental testing, microbial testing and calibration laboratories, etc.

Inquiry History

5 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Methyl parahydroxybenzoate (E218)	3 MT	Sep 13, 2023
Egypt	Methyl Paraben Base	500.00 KG	Jan 29, 2026
Egypt	Methyl parben	250.00 KG	Dec 25, 2024
India	Methylparaben NF	25 MT	Jan 8, 2024
United States	China Manufacturers Active Concentrate Detergent Raw Material Liquid 86438-79-1 Capb T-50 Betaine 50%	55 G	Jul 11, 2023

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Methylparaben in Methanol

Product Description

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