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Kev paub nplua nuj
Nrog ntau xyoo dhau los ntawm kev tsim khoom thiab kev lag luam siab - cov tshuaj zoo, Gnee Chemical Company, peb muab cov tshuaj Organic, Biochemicals, Pharmaceutical Intermediates, thiab ntau dua.
Pab neeg tshaj lij
Gnee Chemical muaj cov neeg ua haujlwm txawj ua haujlwm hauv kev tshawb fawb thiab kev tsim kho. Peb pab neeg ntawm ntau tshaj 200 tus neeg yog lub luag haujlwm rau kev kuaj xyuas zoo, kev tswj hwm kev tsim khoom thiab tom qab- kev pabcuam muag khoom raws li ib qho - nres kev pabcuam. Peb muab R & D thiab cov kev daws teeb meem rau peb cov neeg siv khoom thoob ntiaj teb.
Ua kom tiav Kev Tsim Nyog
Peb ua raws li lub hauv paus ntsiab lus ntawm "Quality First" thiab tau txais ISO 9001 ntawv pov thawj. Peb kuj tau teeb tsa lub chaw kuaj mob siab rau siv cov qauv kev tswj xyuas nruj ntawm txhua theem ntawm cov txheej txheem tsim khoom. Cov neeg soj ntsuam zoo saib xyuas cov txheej txheem tsim khoom ntawm txhua yam khoom kom ntseeg tau tias cov khoom siv tshuaj lom neeg kawg.
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CAS Nr .: 122-99-6 2-Phenoxyethanol yog cov xim tsis muaj xim lossis cov xim av xim av nrog me ntsis solubility hauv dej, tab sis soluble hauv ethanol, thiab siv los ua tshuaj loog. Tus neeg sawv cev no muaj cov kab mob bactericidal thiab fungicidal thiab tau siv los ua tshuaj loog. Tus neeg sawv cev no tuaj yeem muab cov theem sib sib zog nqus ntawm cov tshuaj loog thiab tseem pheej yig, txawm li cas los xij, nws tsis muaj lwm yam zoo dua lwm yam tshuaj.
Cov txiaj ntsig ntawm CAS 122-99-6|2-Phenoxyethanol
Muaj kev nyab xeeb rau kev siv nyob rau hauv qis concentrations.
Phenoxyethanol tau pom zoo los ntawm ntau lub koom haum siv rau hauv cov khoom, suav nrog kev siv:
· Cosmetic Ingredient Review (CIR) Vaj Huam Sib Luag;
· Food & Drug Administration (FDA);
· European Economic Community (EEC).
Cov kev tshawb fawb pom tau tias nws tsis yog thawj zaug lossis cov tawv nqaij ua kom khaus khaus. Nws yog feem ntau suav hais tias muaj kev nyab xeeb rau kev siv nyob rau hauv ib qho concentration ntawm tsawg dua 1%.
Cov khoom siv tau ntev dua.
Thaum koj pom cov tshuaj tua kab mob zoo li phenoxyethanol ntawm koj cov khoom lag luam, koj paub tias lawv yuav kav ntev dua. Feem ntau cov khoom siv tshuaj pleev ib ce thiab xab npum tuaj nrog cov hnub tas sij hawm, yog li nco ntsoov xyuas seb koj cov khoom zoo npaum li cas ua ntej yuav khoom.
Koj yuav tsum tsis tu ncua xyuas koj cov txee thiab pov tawm cov khoom uas tau tas sij hawm. Yog tias koj muaj kev tsis ntseeg txog qhov tshiab, ua yuam kev ntawm kev ceev faj.
Kev txhawj xeeb txog kev nyab xeeb puag ncig CAS 122-99-6|2-Phenoxyethanol
Koj yuav pom cov lus teb sib xyaw ntawm tib neeg txog kev nyab xeeb ntawm cov khoom xyaw no hauv koj cov khoom kom zoo nkauj. Kev siv tshuaj pleev xim ntawm Phenoxyethanol yog suav tias yog kev nyab xeeb yog siv tsawg. Feem ntau cov concentration ntawm Phenoxyethanol mus txog 1% yog tso cai nyob rau hauv cov khoom formulae. Txawm li cas los xij, kev siv ntau dhau thiab raug rau nws tuaj yeem ua rau muaj teeb meem kev noj qab haus huv loj. Nws tsis muaj kev nyab xeeb los siv sab hauv.
Cov khoom uas muaj Phenoxyethanol yog suav tias yog tsis muaj kev nyab xeeb rau cov me nyuam mos. Nws raug nquahu kom tsis txhob siv cov khoom uas muaj Phenoxyethanol yog tias koj tab tom ua rau cov tawv nqaij hnyav xws li eczema, psoriasis lossis dermatitis. Khaws kom deb ntawm cov menyuam yaus. Cov neeg uas muaj cov tawv nqaij rhiab yuav tsum tau ua ib qho kev kuaj ua ntej siv nws thiab xyuas seb puas muaj kev fab tshuaj. Yog tias koj pom tias muaj kev tsis haum tshuaj rau ntawm koj daim tawv nqaij, thov tsis txhob siv nws thiab mus ntsib kws kho mob tam sim ntawd.
Ntev npaum li cas CAS 122-99-6|2-Phenoxyethanol Xeem?
Rau cov khoom khaws cia nrog tej yam xws li phenoxyethanol lossis lwm yam khoom ruaj khov, koj tuaj yeem tau txais tsawg kawg 18 lub hlis. Uas tau hais tias, yog tias koj ntxiv cov khoom xyaw rau peb cov hauv paus thiab cov khoom lag luam, koj yuav xav xav txog seb lawv puas yuav ua rau lub sijhawm luv luv.
Feem ntau, nws yog nyob ntawm koj li cas koj txiav txim siab hnub tas sij hawm ntawm koj cov khoom, cia nyob ib leeg seb koj puas tau muab hnub tas sij hawm ntawm koj lub ntim (uas tsis raug cai). Ua siab ncaj rau koj cov neeg siv khoom - lawv yuav nkag siab txog kev txwv ntawm kev siv cov khoom xyaw ntuj thiab cov organic. Thiab ntawm chav kawm, nco ntsoov khaws cov khoom hauv qhov chaw txias dua kom deb ntawm tshav ntuj ncaj qha yog tias ua tau.
CAS 122-99-6|2-Phenoxyethanol ua los ntawm?
Phenoxyethanol, los yog 2-phenoxyethanol, muaj ib tug loj spectrum ntawm antimicrobial kev ua si thiab tau dav siv raws li ib tug preservative nyob rau hauv cov tshuaj pleev ib ce rau ntau xyoo lawm. Nws muaj txiaj ntsig zoo rau ntau yam Gram-cov kab mob tsis zoo thiab Gram-zoo, nrog rau cov poov xab, thiab tsuas muaj qhov tsis muaj zog inhibitory cuam tshuam rau cov neeg nyob hauv daim tawv nqaij.
Raws li European Scientific Committee on Consumer Safety, phenoxyethanol muaj kev nyab xeeb rau txhua tus neeg siv khoom - suav nrog cov menyuam yaus ntawm txhua lub hnub nyoog - thaum siv los ua cov khoom khaws cia hauv cov khoom siv tshuaj pleev ib ce ntawm qhov siab tshaj plaws ntawm 1%.
Cov teebmeem tsis zoo tau raug pom nyob rau hauv cov kev tshawb fawb toxicological ntawm cov tsiaj, tab sis tsuas yog thaum cov theem ntawm qhov raug ntau dua (nyob ib ncig ntawm 200-fold siab) dua li cov neeg tau txais kev pom zoo thaum siv phenoxyethanol- muaj cov khoom siv tshuaj pleev ib ce. Txawm hais tias nws siv dav hauv cov khoom siv tshuaj pleev ib ce, phenoxyethanol yog qhov tsis tshua muaj rhiab heev. Nws tuaj yeem suav hais tias yog ib qho ntawm cov tshuaj tiv thaiv zoo tshaj plaws uas siv hauv cov khoom kom zoo nkauj.
CAS: 288-16-4 丨 Isothiazole yog dab tsi?
CAS: 288-16-4丨 Isothiazole yog cov organic compound uas muaj cov mis (CH)3S(N). Lub nplhaib yog unsaturated thiab nta ib daim ntawv cog lus SN. Cov isomeric thiazole, qhov twg S thiab N tsis ncaj qha sib txuas yog ntau dua. Isothiazones yog tsim los ntawm oxidation ntawm enamine-thiones. Lub nplhaib qauv ntawm isothiazole tau muab tso rau hauv cov tebchaw loj nrog kev ua haujlwm lom neeg xws li cov tshuaj siv tshuaj ziprasidone thiab perospirone.
Cov txiaj ntsig ntawm CAS: 288-16-4 丨 Isothiazole
Isothiazole (1,2-thiazoles) yog tsib- koom nrog heteroaromatic thiab suav tias yog muab los ntawm thiophene nyob rau hauv qhov thib ob txoj hauj lwm yog nyob ntawm nitrogen atom. Ntau yam penicillins thiab cephalosporins uas muaj lub nplhaib isothiazole tau pom tias muaj kev tiv thaiv kab mob ntau yam tiv thaiv Gram- cov kab mob zoo thiab Gram-negative.
Ntau lub tebchaw nrog ib qho isothiazole scaffold pom ntau yam ntawm cov kab mob lom neeg, nrog rau cov tshuaj tua kab mob, tshuaj tua kab mob, thiab cov tshuaj tiv thaiv kab mob. Qee cov molecules no tau siv tau zoo hauv kev kho mob Alzheimer's disease. Cov isothiazole-raws li cov tshuaj sib xyaw ua ke pom muaj txiaj ntsig zoo thaum siv nrog lwm cov tshuaj biocidal. Cov molecules no kuj ua raws li tshuaj tua kab mob thiab ua ke nrog lwm cov tshuaj tua kab mob lawv feem ntau txhim kho lawv cov txiaj ntsig.
Tsis tas li ntawd, isothiazole derivatives muaj cov ntawv thov hauv cov xim thaij duab vim tias lawv tau siv rau kev ruaj khov ntawm cov ntaub ntawv photomaterials.868 Qee cov ntsiab lus tseem ceeb ntawm chav kawm no yog siv los ua tshuaj thiab hauv kev sim tshuaj raws li tau hais hauv daim duab hauv qab no.
Tus qauv ntawm CAS: 288-16-4 Isothiazole yog dab tsi?
CAS:288-16-4丨 Isothiazole yog tsib- koom nrog, unsaturated, planar, π-heteroaromatic ntau dhau uas muaj ib tus sulfur atom thiab ib qho pyridine-type nitrogen atom ntawm txoj hauj lwm 3 ntawm lub voj voog voj voog. Nws tseem hu ua 1,3-thiazole.
Qhov siab dua aromaticity ntawm thiazole yog vim delocalization ntawm ib leeg ib khub ntawm sulfur electrons thoob plaws lub nplhaib, uas yog pov thawj los ntawm cov tshuaj hloov ntawm lub nplhaib hydrogen ntawm δ 7.27 thiab 8.77 ppm (C2 thiab C4), qhia diamagnetic nplhaib tam sim no. Qhov ntsuas π electron ceev tau qhia tias C5 yog qhov chaw tseem ceeb ua raws li C4 rau kev hloov hluav taws xob, qhov C2 yog qhov chaw nyiam rau kev hloov pauv nucleophilic.
Dab tsi yog Cov Khoom Ntawm CAS: 288-16-4 丨 Isothiazole?
Lub cev muaj zog
Thiazole yog daj ntseg - daj nplaim, nrog pyridine- zoo li tsw, bp ntawm 116-118 degree, thiab pKa ntawm 2.5 (conjugate acid). Nws qhov ceev yog 1.2 gm / cm3, thiab nws yog haum rau soluble hauv ether thiab cawv tab sis sparingly soluble hauv dej. Lub peev xwm ionization yog 9.50 eV thiab nws lub sijhawm dipole yog 1.61 D.
UV (ethanol), λnm (ε): 207.5 (3.41), 233.0 (3.57).
1H NMR (CDCl3), δ (ppm): C2–H, 8.88; C3–H, 7.41; C4–H, 7, 98.
13C NMR (CDCl3), δ (ppm): C2, 153.6; C4, 143.3; Txc5, 119.6.
Tshuaj Reactivity
Thiazole yog qhov yooj yim dua li oxazole tab sis tsawg dua qhov yooj yim tshaj li pyridine thiab tsim cov ntsev picrate ruaj khov. Nws cov tshuaj reactivity zoo ib yam li thiophene thiab pyridine vim muaj thiophene - hom sulfur ntawm txoj hauj lwm 1 thiab pyridine - hom nitrogen ntawm txoj hauj lwm 3 ntawm lub nplhaib thiazole. Muaj peb qhov chaw ua tau, sulfur, nitrogen, thiab C5, rau cov tshuaj tiv thaiv electrophilic. Txawm li cas los xij, qhov chaw tsis zoo hauv hluav taws xob C2 yog qhov ua rau nucleophilic nres.
Electrophilic Reactions ntawm Nitrogen
Electrophilic nres ntawm nitrogen nyob ntawm lub xub ntiag ntawm electron ceev ntawm nitrogen, raws li zoo raws li txoj hauj lwm thiab qhov xwm ntawm hloov pauv txuas mus rau lub nplhaib thiazole. Cov nitrogen nyob rau hauv thiazole yog sp2 hybridized thiab ib leeg ib khub ntawm electrons nyob rau hauv lub nitrogen yog tsawg reactive vim muaj zog aromatic cim thiab txo qis hauv paus. Nws yog protonated thiab alkylated / acylated ntawm nitrogen tsim hydrochloride thiab quaternary thiazolium ntsev.
Peb lub Hoobkas
Gnee Chemicals yog ib lub koom haum ntawm Gnee Group. Nrog ntau xyoo dhau los ntawm kev tshawb fawb, kev tsim khoom, thiab kev lag luam ntawm cov tshuaj organic, Gnee Chemicals tau tshwm sim los ua cov khoom siv tshuaj lom neeg thoob ntiaj teb kev koom ua ke kev tshawb fawb, kev tsim kho, thiab kev tsim khoom.
Txog rau tam sim no, Gnee Chemicals tau tsim lub xeev - ntawm -- kos duab hauv paus uas suav nrog cov chaw tsim khoom, cov chaw kuaj sim, thiab cov chaw tshawb fawb. Peb xyuas kom meej cov khoom zoo los ntawm NMR, HPLC, MS, thiab lwm yam kev tshuaj ntsuam xyuas thiab muab kev tshawb fawb thiab tsim kev daws teeb meem rau peb cov neeg siv khoom thoob ntiaj teb.
Ultimate FAQ Guide to Material Science
Raws li ib qho ntawm cov khoom siv science manufacturers thiab cov muag khoom nyob rau hauv Suav teb, peb sov siab txais tos koj rau cov lag luam wholesale pheej yig cov ntaub ntawv tshawb fawb ntawm no los ntawm peb lub hoobkas. Tag nrho cov khoom siv tshuaj muaj txiaj ntsig zoo thiab cov nqi sib tw.