Khoom Taw Qhia
FluoresCesin yog cov khoom siv hluavtaws sib xyaw ua ke tau siv dav ua cov tshuaj fluorescent tracer nyob rau hauv ntau daim ntawv thov kev kho mob thiab kev kho mob. Paub txog nws cov teeb liab ntsuab fluoriolet nyob rau hauv cov kev tshawb xyuas xiav, tshuaj lom neeg roj hmab, ophthalmology, thiab tsom ntsuas tshuaj lom neeg. Nws lub peev xwm los khi nrog cov lwg me me thiab emit pom pom lub teeb ua rau nws muaj cov cuab yeej ua kom pom tseeb rau kev taug qab thiab pom cov txheej txheem thev naus laus zis. Muaj nyob rau hauv cov hom sib txawv, suav nrog Sodium Fluorescein thiab fluorescein isiciocyanate, nws muaj cov ntawv thov kev raug mob rau cov dej ntws hauv kev kawm ib puag ncig.
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5-Ethynyl-2-deoxyuridine CAS 61135-33-9Catalog No.: SS130651 NrNtau
CAS Nr .: 61135-33-9
Purity: 98% min.
Khoom npe: 5-Ethynyl-2-deoxyuridine
Cov roj formula: C11H12N2O5
Molecular Luj: 252.22 -
Fludrocortisone acetate 丨 CAS yog 514-36-3Catalog Tsis yog.: SS128654Ntau
CAS TSIS MUAJ .: 514-36-3
Qib / assay: EP8.0 / 97% rau 103%
Khoom npe: fludrocortisone acetate
Molecular Cov Qauv: C23.3Fo6
Molecular hnyav: 422.49 -
6-hex 丨 cas 155911-16-3Catalog tsis muaj.: SS131747Ntau
CAS TSIS MUAJ .: 155911-16-3
Purity: 95% min
Khoom npe: 6-hex
Molecular Cov Qauv: C21H6Cl6o7
Molecular hnyav: 582.99
Cov Lus Txhais: 2,4,5,7,7 {{{{{{}... -
FluoresCesin 6-ototiocyanate 丨 Cas Cas 18861-78-4Catalog tsis muaj.: SS131784Ntau
CAS TSIS MUAJ .: 18861-78-4
Purity (HPLC): 95% min
Khoom npe: FluoresCein 6-astothiocyanate
Molecular cov mis: c21h11No5s
Molecular hnyav: 389.38
Txhais lus (s): fluorescein 6-ototiocyanate... -
6-aminofluorescein are Cas 51649-83-3Catalog tsis muaj.: SS131999Ntau
CAS TSIS MUAJ .: 51649-83-3
Purity (HPLC): 95% min
Khoom npe: 6-aminofluorescein
Molecular Cov Qauv: C20h13No5
Molecular hnyav: 347.33
Cov Lus Txhais:... -
5-FluoresCoram Phosphorite 丨 CAS 204697-37-0Catalog tsis muaj .: SS086246Ntau
CAS TSIS MUAJ .: 204697-37-0
Assisy (31p NMR): 95% min; Assisy (hplc): 95% min
Khoom npe: 5-fluorescein phosphoramidite
Molecular cov mis: c46h58n3n3o10p
Molecular hnyav: 843.94
Txhais tau... -
D-Luciferin poov tshuaj ntsev 丨 CAS 115144-35-9Catalog Tsis yog.: SS104591Ntau
CAS TSIS MUAJ .: 115144-35-9
Purity (HPLC): 99% min
Khoom npe: D-Luciferin poov tshuaj ntsev
Molecular cov mis: c11h7kn2O3s2
Molecular hnyav: 318.4
Cov Lus Txhais: Potassium (s) -2-... -
D-Luciferin 丨 CAS 2591-17-5Catalog Tsis yog.: SS124268Ntau
CAS TSIS MUAJ .: 2591-17-5
Assay: 98.0% min
Khoom npe: D-Luciferin
Molecular Cov Qauv: C11H8N2O3S2
Molecular hnyav: 280.32
Txhais lus (s): Firefly Luciferin -
Fluoresin isothiocyanate 丨 CAS CAS 27072-45-3Catalog tsis muaj.: SS116874Ntau
CAS TSIS MUAJ .: 27072-45-3
Purity (HPLC): 95% min
Khoom npe: Fluorescein isothiocyanate
Molecular cov mis: c21h11No5s
Molecular hnyav: 389.38
Cov Lus Txhais: FluoresCein-5-astothiocyanate -
5-carboxyfluorescein 丨 CAS 76823-03-5Catalog tsis muaj.: SS019029Ntau
CAS TSIS MUAJ .: 76823-03-5
Purity (HPLC, 254NM): 95% min.
Khoom npe: 5-carboxyfluorescein
Molecular Cov Qauv: C21H12O7
Molecular hnyav: 376.32
Cov Lus Txhais: 4 (5) -CarboxyFluorescein -
6-carboxyfluorescein are 3301-79-9Catalog tsis muaj.: SS131804Ntau
CAS TSIS MUAJ .: 3301-79-9
Purity: 99% Min (HPLC)
Khoom npe: 6-carboxyfluorescein
Molecular Cov Qauv: C21H12O7
Molecular hnyav: 376.32
Cov Lus Txhais: 3,6-Dihydroxy-3-Oxospiro... -
5 (6) -CarboxyFluorescein 丨 CAS 72088-94-9Catalog Tsis yog.: SS115835Ntau
CAS TSIS MUAJ .: 72088-94-9
Purity: 97% min
Khoom npe: 5 (6) -CarboxyFluorescein
Molecular Cov Qauv: C21H12O7
Molecular hnyav: 376.32
Cov Lus Txhais: 4 (5) -CarboxyFluorescein;...
Cov khoom lag luam zoo thiab cov yam ntxwv
Rhighly fluorescent:FluoresCesIein emits lub xim ntsuab ci ntsa iab thaum raug lub teeb, ua rau nws pom cov tshuaj me me hauv roj ntsha thiab tshuaj pleev cov tshuaj.
Cov Ntawv Thov Ntau Yam:Ntawm kev kho mob rau kev kawm ib puag ncig, fluorescein yog siv thoob plaws ntau daim teb rau nws cov khoom pom zoo thiab pom tau zoo.
Tsis-lom thiab muaj kev nyab xeeb:Fluoresin feem ntau yog muaj kev nyab xeeb feem ntau rau kev siv hauv cov txheej txheem kho mob, xws li kev kuaj mob qhov muag thiab angiography, nrog kev phiv los ntawm kev phiv.
Nqi Them Nqi:FluoresCesin yog cov pheej yig piv piv rau lwm cov fluorescent tracers, ua rau nws xaiv qhov kev xaiv zoo tshaj plaws hauv kev ntsuas loj lossis cov kev tshawb fawb.
Dej-soluble:Fluoresin Dissolves yooj yim hauv dej, pab txhawb nws siv hauv kev siv roj ntsha thiab ib puag ncig uas yuav tsum ua cov dej.
Ntev ntev ntev fluorescence:Cov compound tswj hwm nws cov khoom fluorescent nyob rau lub sijhawm, muab cov txiaj ntsig kev sib xws thiab txhim khu kev qha nyob rau hauv kev sim ua haujlwm ntev lossis kuaj mob.
Heev rhiab:Fluoresin cov kev ua kom zoo rau kev kuaj pom ntawm feeb kom ntau ntawm cov tshuaj, ua rau nws cov ntawv thov siab.
Khoom Yam
Sodium fluorescein
Cov qauv dej-soluble siv feem ntau hauv Ophthalmology rau kuaj mob pob txha caj dab, txawv teb chaws lub cev nyob rau hauv lub qhov muag, thiab kev noj ntshav dawb huv.
Fluoresinin isothiocyanate (fitc)
Kev tshawb nrhiav cov tshuaj tiv thaiv biochemical rau cov khoom siv rau cov nqaij tawv, thiab lwm cov xyoob ntoo, thiab lwm cov xyoob ntoo, thiab lwm cov tshuaj tua tsiaj rau fluorescence thiab nus cytometry thiab ntws cytometry.
Fluorescein irodium ntsev
Siv rau hauv cov ntawv thov ib puag ncig, xws li taug qab cov dej ntws, ntes cov dej xau hauv dej, thiab kev kawm txog dej thiab dej hiav txwv ploj.
FluoresCesin-daim ntawv sau npe
Cov ntaub ntawv tshwj xeeb ntawm cov tshuaj fluorescein yog siv hauv kev ua ntu zus rau DNA cov kev sim thiab kev sim ntawm kev kuaj pom ntawm lub nucleotide tshwj xeeb ua ntu zus.
Hnyav cov tshuaj fluorescein poob
Feem ntau siv nyob rau hauv cov chaw kuaj mob los kuaj xyuas cov kev ua paug, mob rwj, thiab lub cev txawv teb chaws ntawm lub pobtha.
Enavenenous fluorescein
Siv cov ntshav fluorescein rau kev pom cov ntshav khiav tawm hauv cov ntshav tawm thiab cov hlab ntsha choroidal hauv ophthalmology.
Daim ntawv thov ntawm cov khoom
FluoresCesin muaj ntau cov ntawv thov hla ntau thaj teb:
Ophthalmology:Fluoresin tau siv dav hauv kev kuaj pom ntawm pob ntseg, thiab tshuaj xyuas cov ntshav tawm los ntawm cov kab mob fluoresceiny.
Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb:Fitc, cov tshuaj fluorescein derorasin derorive, yog nquag siv nyob rau hauv imbunofluorescence rau daim ntawv sau cov hlau thiab taug qab cov protein hauv xov tooj ntawm tes.
Kev Tshawb Fawb Kev Tshawb Fawb:Fluoresin tau ua haujlwm hauv cov dej taug kev ntws tawm, ntes cov dej xau, thiab kev kawm txog kev txav mus los ntawm cov dej tsis huv.
Tshuaj Ntsuam Xyuas Tshuaj:Siv ua phem pH qhov taw qhia thiab taug qab kev txav ntawm cov kua hauv cov sim, fluorescein yog ib qho cuab yeej hauv kev siv tshuaj thiab cov kev tshawb fawb biochemical.
Kev Tshawb Fawb Kev Tshawb Fawb:Fluoresin yog siv hauv kev tshawb nrhiav kev ua txhaum scene tshawb fawb latent ntshav, raws li nws fluoresces nyob rau hauv UV teeb thaum nyob rau hauv kev sib cuag nrog hemoglobin.
Kho mob kuaj mob:Cov tshuaj fluoresin-raws li tuaj yeem kuaj cov mob fluor
Kev kom zoo nkauj thiab siv:Qee cov kev siv suav nrog siv fluorescein li xim xim hauv cov tshuaj pleev ib ce thiab ua kom pom kev zoo.
Cov khoom siv ntawm cov khoom
FluoresCesin yog synthesized siv ntau yam tshuaj lom neeg uas ua kom tau nws cov yam ntxwv fluorescent:
Phenol thiab Phthal Anhydride
Cov txheej txheem tseem ceeb uas siv hauv kev tsim cov tshuaj fluorescein. Cov tebchaw no yauv nyom cov kev cuam tshuam nrog Fluorescein tus qauv.
Sodium ntsev (sodium fluorescein)
Daim foos feem ntau, sodium fluorescein yog dej-soluble thiab siv ntau hauv kev kho mob thiab kev thov ib puag ncig.
Pab Pawg Isothocyanate Pab Pawg
Pom hauv fluorescein isothiocyanate (Fitc), cov pab pawg neeg uas tso cai fluorescein rau kev khi nrog cov tshuaj tiv thaiv kab mob, thiab lwm yam lwg me me rau siv hauv kev tshawb fawb.
Hydroxyl pawg
Cov pab pawg ua haujlwm no hauv cov tshuaj fluorescein tso cai rau nws cov solubility siab thiab ua kom nws siv nyob rau ntau yam kev siv cov cim.
Txheej txheem ntau lawm lossis cov txheej txheem
Kev tsim fluorescein koom cov txheej txheem tshuaj lom neeg kom ntseeg tau tias nws cov txiaj ntsig thiab huv:
Txuj ca
FluoresCesin yog synthesized los ntawm kev hws ntawm phthalic anhydride thiab resorcinol (lossis phenol), sib sau ua ke fluorescent ntau. Tus txheej txheem no yuav tsum ceev faj txog kev kub ntxhov thiab cov kev tawm tsam los tsim fluorosceCeCE cov tshuaj ntsuab.
Huv
Tom qab synthesis, fluoresCein undergoes purification kom tshem tawm cov khoom tsis muaj txiaj ntsig. Cov tswv yim xws li Recrystallization thiab chromatography yog siv tau los ua tiav cov qib siab.
Txoj kev
Rau cov ntawv thov sib txawv, fluorescein tuaj yeem tsim cov khoom lag luam xws li tee, hmoov, lossis cov kev daws teeb meem. Hauv cov chaw kho mob, feem ntau nws yog feem ntau muab ua kev daws teeb meem rau kev siv nyab xeeb.
Kev kuaj
Txhua ntu fluoresCesin yog qhov ntsuas nruj rau kev siv fluorescence, purity, thiab ruaj khov kom ntseeg tau tias muaj kev ua tau zoo nyob rau hauv kev kuaj mob thiab kev tshawb fawb.
Cheebtsam ntawm cov khoom
Cov khoom fluorescein muaj ntau qhov tseem ceeb:
Cov Khoom Siv Ua Haujlwm (Fluorescein)
Lub luag haujlwm tseem ceeb rau cov fluorescence thiab nws ntau cov kev siv hauv kev kuaj mob thiab tshawb fawb.
Raws daws
Nyob ntawm daim ntawv fluorescein (piv txwv li, sodium fluorescein), dej cawv lossis haus dej caw ua cov kuab tshuaj kom tsim cov kua rau kom yooj yim dua.
Stabilizers
Hauv qee qhov qauv, cov stabilizers tau ntxiv los tiv thaiv kev ua kom tsis txhob muaj kev puas tsuaj thiab ua kom cov fluorescent cov fluorescein dhau sijhawm.
Buffering sawv cev
Siv hauv kev kho mob thiab kuaj cov ntawv thov kom ua kom lub pH muaj kev daws teeb meem fluoresCe, kom ua tau zoo tshaj plaws hauv kev ua tau zoo ntawm kev ua tau zoo.
Kev Txij Nkawm thiab Kev Ceev Faj
Txhawm rau kom ntseeg tau tias kev ua tau zoo thiab ua tau zoo ntawm fluorescein, kev cia kom zoo thiab tuav yog qhov tseem ceeb:
Kev Cia
Cov tshuaj fluorescein yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav, kom deb ntawm kev tshav ntuj ncaj qha. Raug rau lub teeb thiab cua sov tuaj yeem txwv nws cov khoom fluorescent.
Txee lub neej
Yuav tsum kuaj cov hnub tas sij hawm, li fluorescein tuaj yeem poob nws cov fluorescence raws sij hawm yog tias khaws cia tsis raug.
Tuav
Kov fluorescein zoo kom zam kom tsis txhob muaj paug lossis txeej, tshwj xeeb yog siv cov hmoov lossis kua. Hauv kev kuaj nrhiav chaw, hnav cov iav tiv thaiv kom tiv thaiv cov tawv nqaij lossis qhov muag.
Pov tseg
Kev tsis siv fluorescein tsis siv yuav tsum tau muab pov tseg raws li cov kev cai hauv lub zos, tshwj xeeb hauv kev tshawb fawb lossis chaw kuaj mob, kom tsis txhob muaj kev sib kis ib puag ncig.
Tuam txhab ua hauj lwm zoo
Peb tsom kwm ntawm kev ua tau zoo & Cov Neeg Siv Khoom
Peb muab kev pab kom xa cov khoom lag luam zoo thiab kev pabcuam cov neeg siv khoom tshwj xeeb tshaj qhov kev cia siab.
Ntau Yam Khoom Ntau
Catalop ntawm tshaj 27, {000 Cov tshuaj rau kev lag luam ntau yam, muab ob qho kev daws teeb meem tshwj xeeb.
Kev lag luam kev lag luam muaj zog
Peb pab neeg uas muaj ntau yam uas muaj cov kev taw qhia, nyob tam sim no nrog txoj kev lag luam qauv kom xa cov tshuaj lom neeg zoo rau koj cov kev xav tau.
Kev sib tw nqi & kev ntseeg tau
Kev sib tw nqi thiab txhim khu kev qha kom ua kom muaj txiaj ntsig zoo, ua tau zoo cov saw hlau tsis muaj kev sib cuam tshuam zoo.
Yuav ua li cas sib koom ua ke nrog peb
Kev sib koom tes nrog leapchem muab rau koj nkag mus rau cov kev tshaj lij ntawm cov tuam txhab ua nrog 18 xyoo kev paub hauv kev lag luam tshuaj. Peb muab tshaj 27, {{{2} Cov tshuaj estical tshuaj uas raug txiav kom tau sib ntsib ntau yam sib txawv. Tag nrho peb cov khoom ua raws li cov qauv kev lag luam thiab muaj nrog cov ntawv pov thawj tsim nyog.
Peb koom tes nrog ntau yam ntawm cov neeg koom tes, suav nrog:
• Kev Tshawb Nrhiav Chaw soj ntsuam
• Cov tuam txhab ua lag luam
• Cov Tshuaj Pleev Cov Tshuaj Plua Khaub Ncaws
• Electronics manufacturers
• Cov Tshuaj Siv Rau Tshuaj
• Cov tsev kawm qib siab thiab tsev kawm qib siab thoob ntiaj teb
• Thiab ntxiv.
Peb tshwj xeeb hauv kev pab peb cov neeg tau pom cov tshuaj lom neeg kom haum rau lawv cov kev xav tau. Ib qho ntxiv, peb muab cov kev cai synthesis kom tau raws li qhov xav tau tshwj xeeb ntawm peb cov neeg koom tes. Txawm hais tias koj xav tau ntau qhov ntau rau cov txheej txheem kev muaj lossis cov khoom me me rau cov ntawv thov tshwj xeeb, peb tau txais koj.
Yog tias koj tab tom nrhiav lub cev khoom siv tswj tau zoo, peb yuav zoo siab tau hnov los ntawm koj. Thov xa koj cov lus nug lossis cov ntsiab lus qhia rau sales@leapchem.com. Peb cov neeg ua haujlwm tshaj lij yog xav ua haujlwm nrog koj thiab pab ua tiav koj cov hom phiaj.
Cov FAQ
Q: Cov tshuaj fluoresce?
A: FluoresCein yog lub fluorescent compound siv nyob rau hauv kev kuaj mob, kev tshawb fawb, thiab ib puag ncig cov ntaub ntawv rau kev pom lub teeb thaum raug rau qee yam yoj yoj.
Q: Dab tsi yog fluorescein siv rau?
A: Nws yog siv rau hauv kev kuaj xyuas qhov muag, kev tshawb fawb txog kev kuaj mob ib puag ncig, thiab pom cov txheej txheem, thiab ntes cov khoom tawg lossis txawv txav.
Q: Kev ua fluorescein ua haujlwm li cas?
A: Fluorescein nqus lub teeb nyob rau hauv ultraviolet lossis xiav ntau yam thiab cov fluorescence, tso cai rau nws kom yooj yim pom hauv cov teeb pom kev zoo.
Q: Cov tshuaj fluorescein muaj kev nyab xeeb rau kev siv hauv cov txheej txheem khomob?
A: Yog, Fluorescein feem ntau suav hais tias muaj kev nyab xeeb rau kev siv hauv kev raug mob thiab cov tshuaj fluorescein.
Q: Cov tshuaj fluoresce siv tau li cas hauv kev kuaj xyuas qhov muag?
A: Hauv kev kuaj xyuas qhov muag, fluorescein tau thov raws li qhov muag poob rau cov teeb meem kev puas tsuaj rau lub pob zeb lossis ntes cov khoom txawv teb chaws hauv qab xiav.
Q: Dab tsi yog qhov sib txawv ntawm fluorescein?
A: Cov hom feem ntau suav nrog sodium fluoresCein, fluorescein isothiocyanate (Fluid)
Q: Siv cov tshuaj fluorescein tuaj yeem siv rau kev ntes kom muaj dej xau?
A: Yog, fluorescein feem ntau siv nyob rau hauv ib puag ncig thiab kev lag luam los kuaj cov dej xau hauv cov dej, cov kav dej, thiab lwm yam dej muaj qauv.
Q: Yuav tsum khaws cov tshuaj fluorousein yuav tsum khaws li cas?
A: Khaws fluorescein hauv qhov chaw txias, qhuav, kom deb ntawm tshav ntuj ncaj qha, txhawm rau khaws cia nws fluorescence thiab ua tau zoo.
Q: Qhov tshwm sim ntawm fluoresCein yog dab tsi?
A: Thaum tsis tshua muaj tshwm sim, xws li xeev siab, ua xua, tab sis nws yog feem ntau tau kev zam txim ntau.
Q: Cov tshuaj fluoresin tuaj yeem siv hauv kev tshawb fawb txog kev muaj roj ntsha?
A: Yog, FluoresCein yog dav siv nyob rau hauv cov cim tshuaj lom neeg, thiab kawm cov txheej txheem cellular hauv qab cov tshuaj fluorescence.
Q: Dab tsi yog fitc?
A: Fitc (fluorescein isothiocyanate) yog ib daim ntawv fluorescein siv los sau npe buorolecules rau fluorometry hauv kev tshawb fawb.
Q: Cov tshuaj fluorousin yuav ua rau ib puag ncig?
A: Thaum fluorescein feem ntau suav hais tias muaj kev nyab xeeb, ntau dhau kev tso tawm mus rau ib puag ncig yuav tsum zam, vim tias lawv yuav cuam tshuam cov tsiaj txhu etricystems.
Q: Cov tshuaj fluorescein haum rau cov kev sim ntev?
A: Yog, Fluorescein lub fluorescence yog ruaj khov, ua rau nws zoo tagnrho rau kev taug kev mus ntev hauv kev sim thiab kuaj mob.
Q: Cov fluorescein ntev npaum li cas?
A: Fluorescein lub fluorescence yog ntev-ntev nyob rau hauv cov xwm txheej zoo, tab sis nws tuaj yeem ua rau lub sijhawm ua haujlwm yog tias raug cua sov, lub teeb, lossis qhov tsis raug.
Q: Puas tau siv tshuaj fluorescein tau rov qab?
A: Feem ntau yog siv rau ib daim ntawv thov, tshwj xeeb hauv kev kho mob, kom zam dhau kev paug thiab xyuas kom meej.
Peb nyob nraum zoo-lub npe hu ua ib qho ntawm cov ua fluorescein manufacturers thiab cov muag khoom hauv Suav teb. Peb sov siab txais tos koj rau lag luam wholesale pheej yig fluorescein los ntawm peb lub hoobkas. Tiv tauj peb rau kev pabcuam kev cai.
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1, {{1-} carbonydiaimidazole 丨 CAS 530-62-1CAS TSIS MUAJ.: 530-62-1Ntau
Assay (t): 98% min
Khoom npe: 1, 1-} carbondiimidazole
Cov Lus Txhais (s): 1, {1-... -
Palladium 丨 cas 7440-05-3CAS TSIS MUAJ.: 7440-05-3Ntau
Purity / qib: 10% PD / C nyob rau hauv qhuav.
Khoom npe: Palladium
Txhais tau... -
N, n-daimethylformamide Duethyl acetal 丨 cas 4637-24-5CAS TSIS MUAJ.: 4637-24-5Ntau
Assay: 98% min
Khoom npe: n, n-dimethylformamide dimethyl acetal
Cov Lus Txhais... -
Aluminium olide 丨 cas 1344-28-1CAS TSIS MUAJ.: 1344-28-1Ntau
Purity: 99.99% min; Nruab nrab particle loj: 50nm
Khoom npe: Aluminium... -
Tetrakis (tripyenylphosphine) palladium 丨 cas 14221-01-3CAS TSIS MUAJ.: 14221-01-3Ntau
Purity: 99% Min PD: 9.2% min
Khoom npe: Tetrakis (Tripyenylphosphy)... -
Alpha-arbutin 丨 cas 84380-01-8CAS TSIS MUAJ.: 84380-01-8Ntau
Purity: 99.5% min.
Khoom npe: alpha-arbutin
Cov Lus Txhais (s): {{4-... -
N-iodosuccinimide 丨 cas no 516-12-1CAS TSIS MUAJ.: 516-12-1Ntau
Purity / qib: 98. 0}% min
Khoom npe: n-iodosuccinimide
Cov Lus Txhais (s): {{1-... -
Octadecanetiol 丨 cas no 2885-00-9CAS TSIS MUAJ.: 2885-00-9Ntau
Assay (GC): 98. 00}% min
Khoom npe: Octadecanetiol
Kev sib tham (s): n-octadecyl...
