Factory Supply CAS 99-76-3 Methylparaben Ntshiab Methylparaben Hmoov
Product Description
Methylparaben, yog ib qho khoom siv nrog cov mis C8H8O3, dawb crystalline hmoov los yog tsis muaj xim siv lead ua, nrog soluble hauv cawv, ether, me ntsis soluble hauv dej, boiling point 270-280 ° C. Nws yog tsuas yog siv los ua bactericidal preservative rau organic synthesis, khoom noj khoom haus, tshuaj pleev ib ce thiab tshuaj, thiab kuj yog siv raws li ib tug pub preservative. Vim tias nws muaj cov qauv phenolic hydroxyl, nws cov tshuaj tua kab mob muaj zog dua li benzoic acid thiab sorbic acid. Nws cov txheej txheem ntawm kev ua haujlwm yog: rhuav tshem cov cell membrane ntawm cov kab mob, cov protein ntau hauv cov hlwb, thiab inhibit qhov kev ua ntawm cov pa enzymes thiab electron hloov enzymes ntawm microbial hlwb.
COA
| Yam khoom | STANDARD | TEST RESULT |
| Assay | 99% Methylparaben | Ua raws |
| Xim | Dawb hmoov | Ua raws |
| tsw | Tsis muaj ntxhiab tsw tshwj xeeb | Ua raws |
| Particle loj | 100% dhau 80 mesh | Ua raws |
| Poob rau ziab | ≤ 5.0% | 2.35% |
| Cov seem | ≤ 1.0% | Ua raws |
| Hnyav hlau | ≤ 10.0ppm | 7ppm ua |
| As | ≤ 2.0ppm | Ua raws |
| Pb | ≤ 2.0ppm | Ua raws |
| Tshuaj tua kab residue | Tsis zoo | Tsis zoo |
| Tag nrho cov phaj suav | ≤100cfu / g | Ua raws |
| Poov & Pwm | ≤100cfu / g | Ua raws |
| E. Coli | Tsis zoo | Tsis zoo |
| Salmonella | Tsis zoo | Tsis zoo |
| Xaus | Raws li Specification | |
| Cia | Khaws rau hauv qhov chaw txias & qhuav, Cia kom deb ntawm lub teeb muaj zog thiab cua sov | |
| Txee lub neej | 2 xyoos thaum khaws cia zoo | |
Muaj nuj nqi
Methylparaben hmoov muaj ntau yam haujlwm, suav nrog:
Sterilization thiab tshuaj tua kab mob: Methylparaben muaj cov tshuaj tua kab mob thiab cov kab mob bactericidal, tuaj yeem rhuav tshem cov cell membrane ntawm cov kab mob, denaturate cov protein nyob rau hauv lub cell, thiab inhibit qhov kev ua ntawm lub pa enzyme system thiab lub electron hloov enzyme system ntawm microbial hlwb, thiaj li. mus ua si lub luag hauj lwm ntawm sterilization thiab antiseptic. Cov cuab yeej no ua rau nws siv dav hauv cov khoom noj, tshuaj pleev ib ce, tshuaj thiab lwm yam.
Anti-inflammatory thiab antibacterial : Ntxiv nrog rau ua ib qho preservative, Methylparaben kuj muaj cov tshuaj tiv thaiv kab mob thiab tshuaj tua kab mob thiab tuaj yeem siv los kho cov kab mob ntawm daim tawv nqaij, xws li khaus tawv nqaij, ua pob khaus thiab lwm yam tsos mob tsis zoo. Hauv kev siv me me, methyl p-hydroxybenzoate muaj qee qhov kev kho mob ntawm daim tawv nqaij.
Rau cov organic synthesis : Methylparaben tuaj yeem siv los ua cov khoom siv raw rau cov organic synthesis, tshwj xeeb tshaj yog nws cov esters, xws li methyl paraben, ethyl paraben, thiab lwm yam. Cov esters no tuaj yeem siv los ua zaub mov ntxiv, xws li kua ntses, vinegar, dej txias, txiv hmab txiv ntoo. flavoring agents, txiv hmab txiv ntoo thiab zaub, preservatives rau pickled khoom.
Daim ntawv thov hauv tshuaj thiab tshuaj pleev ib ce: Methylparaben yog siv los ua cov tshuaj khaws cia hauv cov tshuaj thiab tshuaj pleev ib ce los tiv thaiv cov zaub mov los ntawm rotting lossis tshuaj tsis zoo. Hauv cov tshuaj pleev ib ce, nws tuaj yeem tiv thaiv cov tshuaj pleev ib ce los ntawm kev lwj, decomposition, thiab tswj cov khoom tshiab thiab ua haujlwm zoo.
Lwm yam kev siv : Methylparaben kuj yog siv los ua ib qho nruab nrab hauv dyes, tshuaj tua kab, thiab tshuaj tua kab rau kev sib txuas ntawm organophosphorus insecticides. Tsis tas li ntawd, nws yog siv nyob rau hauv kev tsim cov kua siv lead ua kua polymers thiab yas, thiab raws li ib tug phenol derivative ntawm benzoic acid, yuav inhibit qhov loj ntawm cov kab mob gram-zoo thiab qee cov kab mob gram-tsis zoo 4.
Hauv cov ntsiab lus, Methylparaben hmoov tsis yog tsuas yog cov tshuaj tiv thaiv zoo thiab cov kab mob tua kab mob, tab sis kuj ua lub luag haujlwm tseem ceeb hauv cov organic synthesis thiab lwm yam.
Daim ntawv thov
Methylparaben, tseem hu ua methyl paraben los yog methyl hydroxyphenyl ester, yog dawb crystalline hmoov los yog tsis muaj kob crystal, soluble nyob rau hauv cawv, ether thiab acetone, me ntsis soluble nyob rau hauv dej zog, boiling point ntawm 270-280 ° C. Lub ntsiab siv ntawm no compound muaj xws li:
Organic synthesis : Raws li cov khoom siv raw ntawm cov organic synthesis, siv los ua ke ntau yam tshuaj.
Khoom noj khoom haus additive : siv raws li ib tug bactericidal preservative los tiv thaiv cov zaub mov ntawm spoilage thiab ncua lub txee lub neej ntawm cov zaub mov.
Cosmetics : Raws li cov kab mob bactericidal preservative ntawm cov tshuaj pleev ib ce, tswj kev nyiam huv thiab zoo ntawm cov tshuaj pleev ib ce.
Pharmaceutical : methyl p-hydroxybenzoate yog siv los ua cov kab mob bactericidal hauv kev lag luam kws kho mob kom ntseeg tau tias muaj kev nyab xeeb thiab ua tau zoo ntawm cov tshuaj.
Pub preservative : siv nyob rau hauv pub los tiv thaiv kev loj hlob ntawm microorganisms thiab xyuas kom meej qhov zoo thiab kev nyab xeeb ntawm pub.
Tsis tas li ntawd, methyl p-hydroxybenzoate kuj muaj phenolic hydroxyl pawg qauv, yog li nws cov kev ua haujlwm ntawm cov kab mob muaj zog dua li benzoic acid thiab sorbate, uas tuaj yeem rhuav tshem cov cell membrane ntawm cov kab mob, cov protein ntau hauv cov hlwb, thiab inhibit cov haujlwm ntawm cov pa enzymes. system thiab electron hloov enzyme system ntawm microbial hlwb, thiaj li ua tiav lub hom phiaj ntawm kev tiv thaiv corrosion. Cov tshuaj no tau siv dav hauv ntau qhov chaw thiab yog cov khoom siv tshuaj tseem ceeb.
Yam khoom
Newgreen Hoobkas kuj muab Amino acids raws li hauv qab no:
Ntim & Xa
