Methylparaben manufacturers and suppliers

Methylparaben suppliers

Properties

Melting point:: 125-128 °C (lit.)

Boiling point:: 298.6 °C

Density: 1,46g/cm

vapor pressure: 0.000005 hPa (20 °C)

refractive index: 1.4447 (estimate)

FEMA: 2710 | METHYL P-HYDROXYBENZOATE

Flash point:: 280°C

storage temp.: room temp

solubility: ethanol: soluble0.1M, clear, colorless

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

form: Crystalline Powder

color: White to almost white

PH: 5.8 (H2O, 20°C) (saturated solution)

Odor: odorless or faint char. odor, sl. burning taste

Water Solubility: Slightly soluble in water.

FreezingPoint: 131℃

Merck: 14,6107

BRN: 509801

Stability:: Stable. Incompatible with strong oxidizing agents, strong bases.

InChIKey: LXCFILQKKLGQFO-UHFFFAOYSA-N

LogP: 1.98 at 20℃

CAS DataBase Reference: 99-76-3(CAS DataBase Reference)

NIST Chemistry Reference: Benzoic acid, 4-hydroxy-, methyl ester(99-76-3)

EPA Substance Registry System: Methylparaben (99-76-3)

Safety Information

Symbol(GHS): GHS09

Signal word: Warning

Hazard statements: H411

Precautionary statements: P273-P391-P501

Hazard Codes: Xi,Xn

Risk Statements: 36/37/38-20/21/22-36

Safety Statements: 26-36-24/25-39

RIDADR: UN 2769

WGK Germany: 1

RTECS: DH2450000

Autoignition Temperature: >600 °C

TSCA: Yes

HS Code: 29182930

Hazardous Substances Data: 99-76-3(Hazardous Substances Data)

Toxicity: LD50 orally in Rabbit: 2100 mg/kg

Use

The antimicrobial activity of methylparaben and other parabens is considerably reduced in the presence of nonionic surfactants, such as polysorbate 80, as a result of micellization.However, propylene glycol (10%) has been shown to potentiate the antimicrobial activity of the parabens in the presence of nonionic surfactants and prevents the interaction between methylparaben and polysorbate 80. Incompatibilities with other substances, such as bentonite, magnesium trisilicate,talc,tragacanth,sodium alginate, essential oils,sorbitol,and atropine,have been reported. It also reacts with various sugars and related sugar alcohols. Absorption of methylparaben by plastics has also been reported; the amount absorbed is dependent upon the type of plastic and the vehicle. It has been claimed that low-density and high-density polyethylene bottles do not absorb methylparaben. Methylparaben is discolored in the presence of iron and is subject to hydrolysis by weak alkalis and strong acids.

You can find Methylparaben suppliers, manufacturers, and distributors from countries such as CHINA, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.