Khoom
Methylaraben; CAS TSIS TAU.: 99-76-3
Txhais lus hais tias: 4-hydroxybenzoic acid metyl ester; methyl p-hydroxybenzoate; methylarben; Methylaraben; sodium ntsev; nipagin
Tshuaj Kho Khoom Ntawm MethylarBaben
Winds Ntag / Xim: Dawb Flash Crystalline Hmoov
Pro vapor siab: 3.65e-05mmHG ntawm 25 ° C
● Melting point: 125-128 ° C (Lit.)
● Cov ntsiab lus tsis zoo: 1.4447 (kwv yees)
● Bowing taw tes: 265,5 ° C ntawm 760 MMHG
● PKA: PKA 8.15 (H2O, T = 20.0) (tsis paub tseeb)
Flash taw tes: 116.4 ° C
● Psa:46.53000
Wensity: 1.209 g / cm3
● Cov ntawv tshaj tawm: 1.17880
● Cov temp.:0-6ReC
● Solubility.ovehanol: soluble0.1m, ntshiab, tsis muaj kob
● DEJ SOLUBILY. ::sighly soluble hauv dej.
● XlogP3: 2
Hydrogen BRONG pub pub nyiaj Suav: 1
Hydrogen BRRongle Txais Txais Suav: 3
Resot Rotatable Bond COUNTER: 2
● Muaj tseeb tiag tshua: 152.047344113
● Cov kab mob hnyav: 11
Inclexity: 136
Cov Ntaub Ntawv Safty
● POTOSSGRAM (S):
Xi,
Xn
● Cov kab mob txaus ntshai: xi, xn
● Cov nqe lus: 36/37 / 38-20 / 21 / 22-36
● Cov nqe lus kev nyab xeeb: 26-36-26-24 / 25-39
Zoo siv
Tshuaj lom neeg:Lwm Yam Siv -> Khoom Khaws Tseg
Canonical luag nyav:Co (= o) c1 = cc = c (c = c1) o
Siv:Methylaraben yog tus ester ntawm methyl cawv thiab p-hydroxybetic isteded los ntawm kev kho kom zoo nkauj ua ntej muaj cov qauv tshuaj loog P-Hydroxybenzoate (Paraben B) thiab Propyl P-Fydroxybenzoate (Nepalese c), kuj yog tshuaj tua hluav taws xob tsis huv.Qhov khoom lag luam yog khaus rau daim tawv nqaij. Parabens yog ib qho ntawm cov pab pawg siv feem ntau ntawm cov tshuaj tiv thaiv kev ua kom zoo nkauj, tshuaj, thiab khoom noj khoom haus, thiab khoom noj khoom haus, thiab khoom noj khoom haus, thiab khoom noj khoom haus, thiab khoom noj khoom noj. Cov parabens muab cov kev ua si thiab cov haujlwm fungistatic tawm tsam ntau tus kab mob muaj ntau yam, thiab suav tias yog siv tshuaj pleev ib ce, tshwj xeeb yog qhov muaj peev xwm. Kev tshuaj xyuas cov tshuaj tiv thaiv kom tau siv nyob rau hauv kev npaj kom zoo nkauj teev cov parabens ntawm qhov tsawg tshaj plaws sensitizing. Cov ntau ntawm cov kev xav tau siv hauv cov tshuaj pleev ib ce sib txawv ntawm 0.03 thiab 0.30 feem pua, nyob ntawm cov neeg paraben yog ib qho ntawm cov khoom lag luam zoo nkauj hauv cov khoom lag luam zoo nkauj thiab khoom noj. Raws li cov tsev qiv ntawv hauv lub teb chaws ntawm cov tshuaj, muaj cov khoom siv ntawm cov txiv hmab txiv ntoo-li nws tuaj yeem pom cov khoom siv cream-tab sis nws tseem tuaj yeem pab cov khoom lag luam no kom lawv muaj txiaj ntsig. Rabach hais tias nws yog chock-tag nrho ntawm cov khoom ntawm fungal thiab antibacterial thiab cov kev xav ua haujlwm kom txuas ntxiv rau lub txee txee ntawm kev ua pob ntseg, cov khoom siv tshuaj pleev plaub ntug.
Methylaraben yog ib tus neeg antimicrobial uas yog cov hmoov dawb dawb. Nws yog nquag tawm tsam cov poov xab thiab pwm tshaj qhov dav dav. Saib parabens. Methyl 4-HydroxyBenzoate yog siv los ua cov neeg sawv cev fungal. Nws kuj tseem siv los ua cov khoom noj, dej haus thiab cov tshuaj pleev ib ce. Nws ua raws li kev ua yeeb yam ntawm kev loj hlob ntawm cov pwm thiab kom tsawg dua cov kab mob thiab ib lub tsheb rau opphalmic daws.
Cov lus qhia ntxaws ntxaws
Methylaraben yog cov tshuaj tiv thaiv feem ntau siv hauv kev ua kom zoo nkauj thiab kev lag luam saib xyuas tus kheej. Nws yog ib tug tswvcuab ntawm pawg neeg paraben, uas suav nrog lwm yam kev ua kom zoo ib yam li angylaraben, propylaraben, thiab butylparaben, yog qee cov ntsiab lus tseem ceeb txog methylarben:
Kev khaws cia: Methylaraben tau ntxiv rau cov tshuaj pleev ib ce thiab cov khoom tu tus kheej kom tiv thaiv kev loj hlob thiab muaj zog ntawm cov kab mob thiab cov kab mob fungi. Nws pab kom ntev lub txee lub neej ntawm cov khoom lag luam no thiab tswj lawv cov khoom zoo thiab kev nyab xeeb.
Kev Nyab Xeeb:Methylaraben tau kawm ntau yam thiab muaj kev nyab xeeb rau kev siv tshuaj pleev ib ce thiab cov khoom lag luam hauv cov neeg saib xyuas kev nyab xeeb (SFCS)
Kev Siv Dav:Methylaraben tuaj yeem pom muaj nyob rau hauv ntau yam khoom lag luam, suav nrog cream, suav nrog cov tshuaj cream, tshuaj, cov tshuaj ntxuav, pleev, tshuaj pleev, tshuaj pleev, tshuaj pleev, thiab hnub ci. Nws yog dav siv vim nws qhov ua tau zoo, kev ruaj khov, thiab sib xyaw nrog ntau yam kom zoo nkauj.
Lwm Yam Parabens: Methylaraben feem ntau siv hauv kev sib xyaw nrog lwm cov parabens (xws li angylaraben, propylaraben, thiab ButylarBaraben) los muab kev tiv thaiv dav dav ntawm cov tshuaj tiv thaiv kev tiv thaiv kev tiv thaiv.
Lwm yam tshuaj tiv tshuaj:Nyob rau hauv xyoo tsis ntev los no, tau muaj cov neeg tau txais kev pab xav tau ntau dua rau kev cawm tsa. Raws li cov lus teb, qee cov tuam txhab ua kom zoo nkauj tau pib siv cov tshuaj tiv thaiv kev xaiv lossis kev xaiv cov tshuaj tiv thaiv. Txawm li cas los xij, methylaraben tseem siv tau dav thiab pom zoo khaws cia hauv kev lag luam.
Nws yog ib qho tseem ceeb kom nco ntsoov tias thaum methylaraben tau kawm ntau yam thiab muaj kev nyab xeeb rau kev siv, qee tus neeg yuav muaj kev sib raug zoo lossis kev ua xua rau lwm yam tshuaj. Yog tias koj muaj kev txhawj xeeb lossis cov lus nug tshwj xeeb txog cov khoom xyaw kom zoo nkauj, nws yog qhov zoo tshaj plaws los sab laj nrog tus kws kho mob dermatologist lossis kev kho mob.
Daim ntawv thov
Methylaraben feem ntau siv los ua kev saib xyuas hauv ntau tus kheej, kom zoo nkauj, thiab cov khoom lag luam tshuaj. Nws lub hom phiaj tseem ceeb yog los tiv thaiv kev loj hlob ntawm cov kab mob, poov xab, thiab pwm, yog li txuas cov txee lub neej thiab ua kom muaj kev nyab xeeb ntawm cov khoom no. Nov yog qee qhov kev siv ntawm Methylarparaben:
Skinther khoom:Methylaraben tuaj yeem nrhiav tau nyob hauv cov matomerizers, ntxuav, ntsej muag lub ntsej muag kom muaj kev ua kom zoo thiab tiv thaiv microbial paug.
Cov Khoom Plaub Hau:Methylaraben siv rau hauv cov tshuaj zawv plaub hau, cov tshuaj ntxuav tes, cov ntsej muag plaub hau, thiab cov khoom siv plaub hau los khaws lawv cov qauv thiab inhibit kev loj hlob ntawm cov kab mob me me.
Cov khoom lag luam lub cev:Methylaraben feem ntau ntxiv rau hauv lub cev tshuaj ntsuab, lub cev ntxuav, deodorants, thiab lwm yam kev saib xyuas tus kheej los tiv thaiv cov khoom lwj thiab cov khoom ruaj khov.
Pleev Cov Khoom:Methylaraben feem ntau siv hauv ntau hom tshuaj pleev ib ce, suav nrog cov hauv paus, hmoov, pleev xim, kom tiv thaiv kev loj hlob ntawm cov kab mob thiab fungi.
Kws Tshuaj:Methylaraben tuaj yeem muaj nyob rau hauv kev ncua ntawm qhov ncauj, zaub qab zib, tshuaj pleev, thiab lwm yam kev nyab xeeb kom ntseeg tau tias lawv muaj kev nyab xeeb thiab tiv thaiv kom tsis huv.
Nws yog ib qho tseem ceeb kom nco ntsoov tias kev siv Methylarbabal hauv cov khoom lag luam yog tswj hwm los ntawm cov tub ceev xwm xws li FDA (hauv Tebchaws Meskas) thiab European Commission hauv EU. Cov koom haum no teeb tsa kev txwv ntawm kev siv Methylaraben thiab lwm yam tshuaj khaws cia kom ntseeg tau tias cov khoom muaj kev nyab xeeb.
