Shaanxi BLOOM Tech Co., Ltd. yog ib tug ntawm cov uas paub txog manufacturers thiab lwm tus neeg ntawm 2-methyl-4-nitrobenzoic acid cas 1975-51-5 nyob rau hauv Suav teb. Txais tos rau cov lag luam wholesale bulk zoo 2-methyl-4-nitrobenzoic acid cas 1975-51-5 muag ntawm no los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi tsim nyog muaj.
2-Methyl-4-nitrobenzoic acidyog ib qho organic compound nrog cov tshuaj formula C₈H₇NO₄. Tus qauv tsim, nws muaj lub nplhaib benzene hloov nrog ib pawg methyl ntawm 2-txoj hauj lwm thiab ib pawg nitro ntawm 4-txoj hauj lwm, nrog rau pawg carboxylic acid. Cov tshuaj no yog ib qho derivative ntawm benzoic acid, hloov kho kom muaj cov tshuaj nitro thiab methyl substituents, uas cuam tshuam rau nws cov tshuaj lom neeg thiab kev ua haujlwm.
Nws feem ntau yog siv los ua ib qho nruab nrab hauv kev sib txuas ntawm cov tshuaj, dyes, thiab agrochemicals. Nws pab pawg nitro tuaj yeem txo qis rau ib pawg amino, pab txhawb kev ua haujlwm ntxiv thiab tsim cov txheej txheem molecular complex. Vim nws reactivity thiab versatility, qhov compound no ua hauj lwm raws li ib tug tseem ceeb lub tsev thaiv nyob rau hauv cov organic chemistry kev tshawb fawb thiab kev lag luam daim ntaub ntawv.
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Tshuaj Formula |
C8H7 NPO 4 |
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Exact Mass |
181.04 |
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Molecular Luj |
181.15 |
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m/z |
181.04 (100.0%), 182.04 (8.7%) |
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Elemental Analysis |
C, 53.04; H, 3.90; N, 7.73; O, 35.33 |
2-Methyl-4-nitrobenzoic acidyog ib qho organic compound nrog cov khoom sib txawv ntawm lub cev uas txhais nws cov morphology. Cov tshuaj no, koom nrog hauv chav kawm ntawm nitrobenzoic acids, nthuav tawm cov yam ntxwv ntawm cov tshuaj tsw qab carboxylic acids nrog nitro thiab methyl substituents.
Kev tshwm sim thiab lub xeev: Nyob rau hauv chav tsev kub, nws feem ntau tshwm raws li ib tug khoom. Nws yog feem ntau pom nyob rau hauv daim ntawv ntawm crystalline hmoov los yog koob, nyob ntawm seb cov kev mob ntawm nws synthesis thiab purification. Cov qauv crystalline yog qhov tshwm sim los ntawm cov molecule lub peev xwm los tsim cov kev txiav txim, rov ua cov qauv los ntawm kev sib cuam tshuam cov rog, tshwj xeeb tshaj yog hydrogen bonding thiab van der Waals kev sib cuam tshuam.
Xim: Cov khoom ntshiab feem ntau yog tawm -dawb mus rau daj daj hauv xim. Lub xub ntiag ntawm impurities los yog variations nyob rau hauv cov txheej txheem tsim yuav ua rau me ntsis discoloration, tab sis lub compound feem ntau tuav ib tug kuj lub teeb xim av.
tsw: Zoo li ntau cov organic acids, qhov sib xyaw ua ke tuaj yeem muaj qhov muag tsis pom kev, tus yam ntxwv tsw. Txawm li cas los xij, nws tsis yog feem ntau piav qhia tias muaj ntxhiab tsw ntxhiab tsw zoo piv rau lwm cov carboxylic acids, tej zaum yog vim cov hluav taws xob - rho tawm los ntawm cov pab pawg nitro, uas tuaj yeem cuam tshuam rau qhov sib xyaw ua ke thiab, yog li ntawd, nws cov ntxhiab tsw siv.
Solubility: Qhov sib xyaw no nthuav tawm me ntsis solubility nyob rau hauv polar solvents xws li ethanol thiab dimethyl sulfoxide (DMSO), thiab nws yog soluble nyob rau hauv dej. Lub xub ntiag ntawm pawg carboxylic acid tso cai rau hydrogen bonding nrog dej molecules, tab sis cov hydrophobic methyl thiab nitro pawg txo nws tag nrho cov dej solubility. Nyob rau hauv cov kuab tshuaj organic, lub compound solubility yog txhim khu kev qha vim muaj kev sib raug zoo nrog cov nonpolar qhov chaw ntawm lub molecule.
Melting Point: Nws muaj cov ntsiab lus melting siab, uas yog cov yam ntxwv ntawm ntau cov tshuaj tsw qab uas muaj zog intermolecular rog. Lub ntsiab lus melting yuav txawv me ntsis nyob ntawm qhov purity ntawm tus qauv tab sis feem ntau nyob rau hauv thaj tsam ntawm 200-210 degree. Qhov siab melting point no qhia txog qhov sib xyaw ua ke ntawm crystalline thiab muaj zog sib cuam tshuam ntawm nws cov molecules.
Kev ruaj ntseg: Lub compound yog ruaj khov nyob rau hauv ib txwm cia tej yam kev mob tab sis yuav tsum tau ceev kom deb ntawm cov muaj zog oxidizing cov neeg ua hauj thiab kub heev, raws li cov nitro pab pawg neeg muaj peev xwm muab ib co rhiab heev rau cov mob no.
hauv Organic Synthesis
Kev hloov pauv ntawm Carboxylic Acid Group
Esterification
Cov pab pawg carboxylic acid tuaj yeem hnov mob nrog cawv nyob rau hauv muaj cov kua qaub catalyst los tsim esters. Cov esters no yog cov muaj txiaj ntsig zoo nyob rau hauv kev sib txuas ntawm cov tshuaj tsw qab, tsw, thiab tshuaj, nrog rau hauv cov tshuaj polymer.
Amidation
Los ntawm reacting nrog amines, pawg carboxylic acid tuaj yeem hloov mus rau amides. Amides yog cov khoom tseem ceeb hauv peptides, cov proteins, thiab ntau yam tshuaj, ua qhov kev hloov pauv no tshwj xeeb hauv biochemical thiab tshuaj chemistry.
Txo kom Cawv
Cov pab pawg carboxylic acid tuaj yeem raug txo mus rau thawj cawv uas siv cov tshuaj txo qis xws li lithium aluminium hydride (LiAlH₄) lossis borane (BH₃). Qhov kev hloov pauv no muaj txiaj ntsig zoo hauv kev sib xyaw ntawm cawv, uas tuaj yeem ua cov khoom pib rau kev ua haujlwm ntxiv.
Tsim cov Acid Chlorides
Kev kho cov carboxylic acid nrog thionyl chloride (SOCl₂) los yog oxalyl chloride (COCl) ₂ tuaj yeem tawm cov kua qaub chlorides, uas yog cov tshuaj reactive intermediates siv nyob rau hauv cov synthesis ntawm ntau yam carboxylic acid derivatives, nrog rau esters, amides, thiab anhydrides.
Nitro Group Transformations
Ntxiv nrog rau qhov reactivity ntawm pawg carboxylic acid, pawg nitro (–NO₂) ntawm lub nplhaib benzene kuj tuaj yeem hloov pauv qhov tseem ceeb:
Txo rau Amine
Cov pab pawg nitro tuaj yeem raug txo mus rau ib pawg amino (–NH₂) siv cov tshuaj txo qis xws li hlau thiab hydrochloric acid, tin thiab hydrochloric acid, lossis catalytic hydrogenation. Qhov kev hloov pauv no yog qhov tseem ceeb hauv kev sib txuas ntawm anilines, uas yog qhov tseem ceeb hauv kev tsim cov dyes, pigments, thiab tshuaj.
Diazotization thiab Coupling Reactions
Cov amino pawg, tau los ntawm kev txo qis ntawm pawg nitro, tuaj yeem hloov mus rau diazonium ntsev ntxiv los ntawm diazotization. Cov ntsev diazonium no tuaj yeem dhau los ua kev sib txuas nrog ntau cov tshuaj tsw qab los ua azo dyes thiab lwm yam khoom siv.
Cov ntawv thov hauv Pharmaceutical Industry
2-Methyl-4-nitrobenzoic acid yog lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj, feem ntau yog siv los tsim cov pob txha pob txha ntawm ntau yam tshuaj molecules. Cov pawg carboxyl thiab nitro hauv cov molecule tuaj yeem muab faib ua ke, thiab cov amino derivative tau los ntawm kev txo qis ntawm nitro pawg yog qhov tseem ceeb ua ntej rau kev npaj ntau yam tshuaj heterocyclic.
Cov tshuaj no nquag ua haujlwm nyob rau hauv kev sib txuas ntawm kinase inhibitors, tshuaj tua kab mob thiab tiv thaiv -cov tshuaj tiv thaiv kab mob, qhov twg kev sib txuas nrog cov saw sib txawv sib txawv hloov cov lipophilicity, lub hom phiaj kev sib raug zoo, thiab metabolic stability ntawm cov tshuaj. Nws cov structurally modified derivatives kuj tuaj yeem ua lub tsev thaiv rau cov tshuaj tiv thaiv kab mob, tshuaj loog hauv zos, thiab qee cov tshuaj mob plawv. Hauv kev tshawb fawb tshuaj chemistry, nws yog siv rau kev ua kom zoo ntawm cov hmoov txhuas thiab cov neeg sib tw molecule npaj. Vim nws ruaj khov benzene nplhaib pob txha pob txha thiab cov pab pawg ua haujlwm hloov pauv tau, nws tuav cov ntawv thov tus nqi siab hauv kev tshawb fawb tshuaj tshiab thiab kev txhim kho ntxiv rau API kev tsim khoom.
Cov ntawv thov hauv Agrochemical Kev Lag Luam
Hauv kev lag luam agrochemical, 2-methyl-4-nitrobenzoic acid yog ib qho tseem ceeb raw khoom rau kev tsim cov tshuaj tua kab muaj txiaj ntsig zoo, tshuaj tua kab mob, thiab tshuaj tua kab mob. Nws cov carboxyl pawg tuaj yeem tsim cov khoom nruab nrab xws li acyl chlorides thiab amides, thiab kev sib txuas nrog cov qauv heterocyclic ua rau muaj txiaj ntsig zoo rau kev ua haujlwm lom neeg thiab ib puag ncig kev nyab xeeb ntawm agrochemicals.
Cov tshuaj no feem ntau yog siv rau hauv kev sib txuas ntawm pyrethroid thiab amide insecticides, uas qhia tau zoo heev inhibitory cuam tshuam rau kev tho- nqus cov kab hauv qhov ncauj. Nws tuaj yeem ua tau raws li qhov nruab nrab rau sulfonylurea thiab aryloxyphenoxypropionate herbicides, ua tiav kev xaiv cov nroj tsuag los ntawm kev cuam tshuam nrog cov enzymes tseem ceeb hauv cov nroj tsuag. Tsis tas li ntawd, nws cov derivatives yog siv rau hauv kev loj hlob ntawm kev ua liaj ua teb fungicides, inhibiting mycelial kev loj hlob thiab spore germination ntawm pathogenic fungi thiab txhim kho cov kev ua tau zoo ntawm cov qoob loo tswj kab mob.
Daim ntawv thov hauv Dyes thiab Organic Pigments
2-Methyl-4-nitrobenzoic acid feem ntau yog siv los ua chromophoric chav tsev thiab kev hloov kho cov qauv nruab nrab hauv kev lag luam dye thiab organic pigment. Kev txo qis ntawm cov pab pawg nitro yields cov aminobenzoic acid sib raug, uas tuaj yeem ua rau diazotization thiab txuas txuas ntxiv los tsim ntau yam azo dyes, acid dyes, thiab disperse dyes.
Kev taw qhia ntawm methyl thiab carboxyl pawg pab txhim kho cov solubility, dyeing npaum li cas, thiab xim ceev ceev ntawm dyes, ua rau ci -cov khoom tiav xim nrog lub teeb zoo heev thiab ntxuav. Nws cov derivatives kuj tseem siv rau kev hloov pauv molecular ntawm cov organic pigments, txhim kho lawv cov thermal stability, dispersibility, thiab tinting zog. Lawv tau siv dav hauv textile printing thiab dyeing, tawv xim, yas thiab txheej xim, ua rau lawv indispensable intermediates rau synthesis ntawm haumxeeb dyes thiab siab -kev ua tau zoo pigments.
Cov ntawv thov hauv Cov Khoom Siv thiab Polymer Science
Nyob rau hauv cov ntaub ntawv thiab polymer science, 2-methyl-4-nitrobenzoic acid yog tsuas yog siv raws li ib tug functional monomer thiab polymer modifier, koom nyob rau hauv lub synthesis thiab hloov ntawm polyesters, polyamides, epoxy resins, thiab lwm yam ntaub ntawv. iav hloov kub, txhua yam muaj zog, thiab huab cua tsis kam ntawm cov khoom.
Cov derivatives ntawm cov compound no tuaj yeem ua tus neeg sawv cev crosslinking thiab kho cov pab cuam, txhim kho cov txheej txheem molding thiab thermal-oxidative aging kuj ntawm resins. Lub caij no, nws cov nitro- muaj cov qauv aromatic tau nyiam cov kev tshawb fawb ntawm optoelectronic haumxeeb cov ntaub ntawv, nrog rau tej zaum siv nyob rau hauv kev npaj ntawm photosensitive polymers, kua siv lead ua intermediates, thiab them nqi thauj cov ntaub ntawv, uas qhia tau hais tias kev cia siab daim ntawv thov kev cia siab nyob rau hauv tshwj xeeb functional polymers thiab zoo tshuaj cov ntaub ntawv.
Environmental Considerations
Raws li nitro{0}}muaj cov organic acid,2-Methyl-4-nitrobenzoic acidua rau muaj kev phom sij loj rau cov dej hauv dej. Nws yog ib qho tseem ceeb uas yuav tsum tau ua thiab pov tseg ntawm qhov sib xyaw no kom zoo kom tsis txhob muaj cov khoom tsis zoo lossis cov khoom loj los ntawm kev nkag mus rau hauv av, dej, lossis cov kav dej phwj tuaj.
Cov tshuaj nitro pab pawg thiab cov organic acid xwm ua rau nws muaj kev phom sij rau cov dej hauv dej. Yog tias tso tawm rau hauv ib puag ncig, nws tuaj yeem cuam tshuam kev sib npaug ntawm ecological thiab ua rau muaj kev pheej hmoo rau cov kab mob hauv dej. Yog li ntawd, kev ntsuas nruj yuav tsum tau ua kom ntseeg tau tias:
Cia: Cov khoom sib xyaw yuav tsum tau muab khaws cia rau hauv cov thawv ntim rau hauv qhov chaw txias, qhuav, deb ntawm noo noo thiab tshav ntuj ncaj qha. Nws raug nquahu kom khaws cia rau hauv qhov chaw tsis muaj roj cua kom tswj tau nws txoj kev ruaj ntseg thiab tiv thaiv kom tsis txhob muaj qhov xau lossis nchuav.
tuav: Thaum tuav nws, cov cuab yeej tiv thaiv tus kheej tsim nyog (PPE) yuav tsum hnav kom tsis txhob muaj tawv nqaij thiab qhov muag. Nws tseem yog ib qho tseem ceeb kom tsis txhob nqus cov plua plav lossis vapor ntawm qhov sib xyaw.
Kev pov tseg: Lub compound yuav tsum tau muab pov tseg raws li cov kev cai hauv zos thiab cov lus qhia rau cov pov tseg uas muaj kev phom sij. Nws yuav tsum tsis txhob nchuav dej los yog tso rau hauv ib puag ncig yam tsis muaj kev kho kom raug.
Los ntawm kev ua raws li cov kev ceev faj no, tej zaum yuav muaj kev phom sij rau ib puag ncig uas cuam tshuam nrog nws tuaj yeem txo qis, ua kom muaj kev nyab xeeb ntawm cov dej ecosystems thiab thaj chaw dav dav.
Ib qho kev txhim kho tseem ceeb hauv kev tshawb fawb ntawm2-methyl-4-nitrobenzoic acidtau tshawb nrhiav nws txoj kev hluavtaws. Cov txheej txheem feem ntau suav nrog kev xaiv oxidation ntawm 4-nitro-o-xylene nyob rau hauv alkaline, siab - kub, thiab siab - siab. Cov txheej txheem no xaiv oxidizes methyl pawg ntawm para- txoj haujlwm ntawm pawg nitro mus rau pawg carboxyl, thaum tawm hauv cov meta- txoj haujlwm methyl pawg tsis cuam tshuam. Lub siab regioselectivity ntawm cov tshuaj tiv thaiv no yog ntaus nqi rau cov hluav taws xob muaj zog - rho tawm qhov xwm txheej ntawm nitro pawg, uas txhim kho cov reactivity ntawm para-txoj hauj lwm.
Lwm qhov tseem ceeb ntawm kev tshawb fawb yog kev kawm txog nws cov khoom siv tshuaj lom neeg thiab reactivity. Cov pab pawg carboxyl tuaj yeem hloov mus rau hauv ntau pawg ua haujlwm, xws li hydroxyl thiab ester pawg, los ntawm ntau yam tshuaj lom neeg. Tsis tas li ntawd, cov pab pawg nitro ntawm lub nplhaib benzene tuaj yeem raug txo kom yooj yim rau ib pawg amino, ntxiv rau kev nthuav dav cov khoom siv hluavtaws.
Nyob rau hauv xyoo tas los no, muaj kev txaus siab rau kev cuam tshuam ib puag ncig. Raws li nitro- muaj cov organic acid, nws ua rau muaj kev phom sij loj rau cov dej hauv dej. Yog li ntawd, kev tuav thiab pov tseg kom zoo ntawm qhov chaw yog qhov tseem ceeb kom txo qis nws ib puag ncig hneev taw.
Txawm hais tias qhov kev nce qib no, kev tshawb fawb ntawm2-methyl-4-nitrobenzoic acidyog tsis tu ncua. Cov kws tshawb fawb txuas ntxiv tshawb nrhiav cov txheej txheem hluavtaws tshiab, kawm txog nws cov kev ua haujlwm nrog ntau cov tshuaj reagents, thiab tshawb xyuas nws cov peev txheej hauv ntau hom xws li tshuaj, agrochemicals, thiab cov ntaub ntawv tshawb fawb.
Cim npe nrov: 2-methyl-4-nitrobenzoic acid CAS 1975-51-5, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom