Methylparaben CAS 99-76-3

Nrhiav kev xaiv loj ntawm Methylparaben CAS 99-76-3 los ntawm Tuam Tshoj ntawm Kev Ntseeg Tshuaj. Muab kev pabcuam tomqab muag thiab tus nqi tsim nyog, tos ntsoov rau kev koom tes. Shandong Ntseeg

Methylparaben CAS 99-76-3 Tshuaj Specification

Methylparaben CAS 99-76-3 Cov Khoom Siv Tshuaj

Melting point 125-128 ° C (lit.)
Kub taw tes 298.6 ° C
Qhov ceev 1.46g / cm3
Vapor siab 0.000005hpa (20 ° C) fema2710 |methylp-hydroxybenzoate
Refractive index 1.4447 (kwv yees)
Flash point 280 ° C
Cia txias chav temp
Solubility ethanol: khoom 0.1M, ntshiab, tsis muaj xim
Acidity coefficient (PKA) pka 8.15 (H2O, t = 20.0) (tsis paub meej)
Morphology siv lead ua hmoov
Xim dawb rau yuav luag dawb
PH 5.8 (H2O, 20 ° C) (saturated tov)
Me ntsis soluble hauv dej
Lub Freezing point 131 â
Merck 14,6107

Methylparaben CAS 99-76-3 Daim ntawv thov

Methyl Paraben feem ntau yog siv los ua cov kab mob bactericidal preservative hauv organic synthesis, zaub mov, tshuaj pleev ib ce, tshuaj, thiab kuj yog pub preservative.Siv preservative; Antimicrobial agents.Siv: siv los ua preservative, kuj siv nyob rau hauv cov tshuaj thiab organic synthesis, siv los ua zaub mov, tshuaj pleev ib ce thiab tshuaj mildew inhibitor.

Kev siv: nws yog siv los ua cov tshuaj tua kab mob thiab cov kab mob bactericide hauv kev lag luam kws tshuaj, thiab kuj yog cov tshuaj tiv thaiv corrosion hauv cov organic synthesis thiab khoom noj khoom haus, txuj lom, zaj duab xis, thiab lwm yam. Cov khoom zoo sib xws uas tsim los ntawm cov txheej txheem ntau lawm, ethyl p-hydroxybenzoate (Nipagin b) thiab propyl p-hydroxybenzoate (Nipagin C), kuj yog tshuaj tua kab mob thiab tshuaj tua kab mob. Cov khoom no yog irritating rau ntawm daim tawv nqaij. Siv: antiseptic thiab bactericide. Kab kab lis kev cai theem yog siv los kawm txog biosynthesis ntawm steroid hormones, xws li testerone. Siv: antiseptic thiab antiseptic. Kev tshawb fawb ntawm steroid hormone synthesis.