Dimethyl Dicarbonate (DMPC) CAS 4525-33-1 Purity ≥99.8% (HPLC) Food Additive Preservative
Shanghai Ruifu Chemical Co., Ltd. ndi amene amapanga Dimethyl Dicarbonate (DMPC; Velcorin) (CAS: 4525-33-1) yokhala ndi khalidwe lapamwamba.Ruifu Chemical imatha kubweretsa padziko lonse lapansi, mtengo wampikisano, ntchito zabwino kwambiri, zochepa komanso zochulukirapo zomwe zilipo.Gulani Dimethyl Dicarbonate,Please contact: alvin@ruifuchem.com
| Dzina la Chemical | Dimethyl Dicarbonate |
| Mawu ofanana ndi mawu | DMPC;Velcorin;Dimethyl pyrocarbonate;Pyrocarbonic Acid Dimethyl Ester;Methoxycarbonyl methyl carbonate;Methyl pyrocarbonate |
| Stock Status | Mu Stock, Commercial Production |
| Nambala ya CAS | 4525-33-1 |
| Molecular Formula | C4H6O5 |
| Kulemera kwa Maselo | 134.09 g / mol |
| Melting Point | 15.0 ~ 17.0 ℃ |
| Boiling Point | 45.0 ~ 46.0℃/5 mm Hg(lit.) |
| Pophulikira | 80 ℃ |
| Kuchulukana | 1.25 g/mL pa 25 ℃ (lit.) |
| Refractive Index n20/D | 1.392 (lit.) |
| Zomverera | Sichinyezimira |
| Kusungunuka kwamadzi | Zosungunuka mu Madzi |
| Kusungunuka | Kusungunuka mu Chloroform, Kusungunuka Kwapang'ono mu Ethyl Acetate |
| COA & MSDS | Likupezeka |
| Chitsanzo | Likupezeka |
| Magulu azinthu | Zakudya Zowonjezera / Zosungira |
| Mtundu | Ruifu Chemical |
| Zinthu | Miyezo Yoyendera | Zotsatira |
| Maonekedwe | Zamadzimadzi Zopanda Mtundu | Zamadzimadzi Zopanda Mtundu |
| DMDC | ≥99.8% (GC) | > 99.8% |
| Dimethyl carbonate | ≤0.20% | 0.03% |
| Kutsogolera (Pb) | ≤2mg/kg | 0.1mg/kg |
| Proton NMR Spectrum | Zimagwirizana ndi Kapangidwe | Zimagwirizana |
| Mapeto | Chogulitsacho chayesedwa ndipo chikugwirizana ndi zomwe zaperekedwa | |
Phukusi:Botolo, 25kg / Drum, kapena malinga ndi zomwe kasitomala amafuna.
Mkhalidwe Wosungira:Sungani chidebecho chotsekedwa mwamphamvu ndipo sungani m'nyumba yozizira, yowuma komanso yolowera mpweya wabwino kutali ndi zinthu zomwe sizingagwirizane.Tetezani ku kuwala ndi chinyezi.
Manyamulidwe:Kutumiza kudziko lonse lapansi ndi ndege, ndi FedEx / DHL Express.Perekani mwamsanga ndi yodalirika yobereka.
Phukusi:Botolo, Aluminiyamu zojambulazo thumba, 25kg/Cardboard Drum, kapena malinga ndi zofunika kasitomala.
Mkhalidwe Wosungira:Sungani chidebecho chotsekedwa mwamphamvu ndikusunga pamalo ozizira, owuma (2~8 ℃) komanso molowera mpweya wabwino kutali ndi zinthu zomwe sizingagwirizane.Tetezani ku kuwala ndi chinyezi.
Manyamulidwe:Kutumiza kudziko lonse lapansi ndi ndege, ndi FedEx / DHL Express.Perekani mwamsanga ndi yodalirika yobereka.
Kodi kugula?Chonde lemberaniDr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
Zaka 15 Zokumana nazo?Tili ndi zaka zopitilira 15 pakupanga ndi kutumiza kunja kwamitundu yambiri yamankhwala apamwamba kwambiri kapena mankhwala abwino.
Misika Yaikulu?Gulitsani kumsika wapakhomo, North America, Europe, India, Korea, Japan, Australia, etc.
Ubwino wake?Ubwino wapamwamba, mtengo wotsika mtengo, ntchito zamaluso ndi chithandizo chaukadaulo, kutumiza mwachangu.
UbwinoChitsimikizo?Njira yoyendetsera bwino kwambiri.Zida zaukadaulo zowunikira zikuphatikizapo NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, KF, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.
Zitsanzo?Zogulitsa zambiri zimapereka zitsanzo zaulere zowunikira zabwino, mtengo wotumizira uyenera kulipidwa ndi makasitomala.
Factory Audit?Takulandilani ku fakitale.Chonde panganitu nthawi yokumana.
MOQ?Palibe MOQ.Dongosolo laling'ono ndilovomerezeka.
Nthawi yoperekera? Ngati mkati mwa katundu, kubweretsa masiku atatu kutsimikizika.
Mayendedwe?Ndi Express (FedEx, DHL), ndi Air, ndi Nyanja.
Zolemba?Pambuyo pa ntchito yogulitsa: COA, MOA, ROS, MSDS, ndi zina zotero.
Custom Synthesis?Itha kukupatsirani ntchito zophatikizira zomwe zikugwirizana bwino ndi zosowa zanu zofufuza.
Malipiro Terms?Invoice ya Proforma idzatumizidwa kaye mukatsimikizira kuyitanitsa, ndikuyika zambiri zathu zakubanki.Malipiro a T/T (Telex Transfer), PayPal, Western Union, etc.
Zizindikiro Zowopsa T - Zowopsa
Zizindikiro Zowopsa
R21/22 - Zowopsa pokhudzana ndi khungu komanso ngati zitamezedwa.
R23 - Poizoni pokoka mpweya
R34 - Imayambitsa kuyaka
Kufotokozera Zachitetezo
S18 - Gwirani ndi kutsegula chidebe mosamala.
S26 - Mukakhudzana ndi maso, muzimutsuka nthawi yomweyo ndi madzi ambiri ndipo funsani malangizo achipatala.
S28 - Mukakhudza khungu, sambani nthawi yomweyo ndi sopo wambiri.
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso/nkhope.
S38 - Ngati mulibe mpweya wokwanira, valani zida zoyenera zopumira.
S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.)
Ma ID a UN 2927 6.1/PG 2
WGK Germany 3
Mtengo wa RTECS HT0362500
FLUKA BRAND F MAKODI 9-21
HS kodi 2920900090
Kalasi Yowopsa 6.1(a)
Packing Gulu II
Poizoni LD50 pakamwa pa Kalulu: 335 mg/kg LD50 dermal Rat> 1250 mg/kg
Dimethyl Dicarbonate (DMPC; Velcorin) (CAS: 4525-33-1), yomwe imadziwikanso kuti Viguolin, ndi mtundu wa zakumwa zotsekemera zamadzimadzi (INS No. 242) zomwe zimaloledwa kugwiritsidwa ntchito pazakudya za dziko langa.Pansi pa kutentha kapena kutentha pang'ono, DMDC imatha kupha mabakiteriya ambiri owononga mu zakumwa zamadzi a zipatso, ndipo zotsatira zake za antiseptic zimagwirizana kwambiri ndi kusinthidwa ndi kusagwira ntchito kwa mapuloteni ofunikira a enzyme mu mabakiteriya ndi DMDC.Poyerekeza ndi matekinoloje ena oletsa kubereka, kugwiritsa ntchito DMDC ndikotsika mtengo, kosavuta komanso kotetezeka, ndipo sikukhudza kukoma, kununkhira ndi mtundu wa mankhwala.Chakhala chimodzi mwazinthu zomwe zimakonda kwambiri pakufufuza kwaukadaulo wosagwiritsa ntchito kutentha kwamoto.
| Gulu la Chakudya No. | Gulu la Chakudya | Mulingo waukulu (g/kg) | Zindikirani |
| 14.02.03 | Madzi a zipatso ndi ndiwo zamasamba (timadzimadzi) akumwa | 0.25 | |
| 14.04 | Zakumwa za carbonated 0.25 | ||
| 14.05.01 | Zakumwa za tiyi | 0.25 | |
| 14.08 | Zakumwa zokometsera (zakumwa zokometsera zipatso zokha) | 0.25 | |
| 14.09 | Zakumwa zina (zomwe zili muzakumwa zosaledzeretsa zokhala ndi chimera) | 0.25 |
DMDC imagwiritsidwa ntchito kwambiri mumadzi a zipatso ndipo ukadaulo wake ndi wokhwima.Mphamvu yotseketsa ya DMDC mu madzi a zipatso imakhudzidwa ndi mtundu ndi kuchuluka kwa madzi a zipatso, ndipo kugwiritsidwa ntchito pamodzi kwa DMDC ndi njira zina zamakono zochepetsera kungathandize kwambiri kuchepetsa kubereka.
Dimethyl Dicarbonate (DMDC) ndi madzi opanda mtundu omwe amanunkhira pang'ono.Amagwiritsidwa ntchito makamaka ngati chosungira chakumwa, chothandizira kukonza, kapena choletsa (Nambala 242).Kugwiritsa ntchito kwa DMDC kumakhala kothandiza makamaka pamene vinyo akufunika kuti asafewedwe koma osasefedwa, kusungidwa pasteurized, kapena sulfure.DMDC imagwiritsidwanso ntchito kukhazikika kwa zakumwa zoledzeretsa monga zakumwa za carbonated kapena zopanda carbonated, zakumwa zamasewera za isotonic, tiyi wozizira, ndi madzi okometsera.
DMDC imatha kulowa mu cell membrane ndikulumikizana ndi ma enzymes mu tizilombo toyambitsa matenda kuti titseke kagayidwe, motero timapeza bactericidal effect.Ngakhale m'malo otsika kwambiri, DMDC imatha kupha mabakiteriya omwe amawononga chakumwa popanda kusokoneza kukoma, kukoma ndi mtundu wa chakumwacho.Kuphatikiza apo, DMDC imatha kusungunuka mwachangu komanso kwathunthu kuti ifufuze kuchuluka kwa carbon dioxide ndi methanol mu zakumwa.Ichinso ndi chilengedwe chopangira madzi a zipatso.
Dimethyl Dicarbonate ikhoza kugwiritsidwa ntchito muzakumwa za carbonated, zakumwa zamadzi aerated kapena zopanda mpweya, zakumwa za tiyi, zakumwa za isobaric ndi zakumwa zina zambiri.Ku Europe, United States ndi mayiko ena, dimethyl dicarbonate imavomerezedwa kuti igwiritsidwe ntchito mofala muzakumwa zosiyanasiyana.Bungwe la World Health Organization’s Joint Expert Committee on Food Additives, European Food Science Committee ndi United States Food and Drug Administration-maboma ena ofunikira apereka zikalata zotsimikizira chitetezo cha ntchito za dimethyl = carbonate.choletsa yisiti;zoteteza.
Kuzizira kozizira kwa mitundu iyi ya zakumwa: zakumwa za zipatso, zakumwa zopatsa mphamvu kwambiri (zokhala kapena popanda mpweya woipa), zakumwa za tiyi (zokhala kapena popanda mpweya woipa), zakumwa zamadzi a zipatso (zokhala kapena popanda mpweya woipa, madzi a zipatso mpaka 100% ).
Imawononga maso ndi khungu, imakoka mwachindunji kapena kumeza poizoni.Amaloledwa kugwiritsa ntchito (angagwiritsidwe ntchito ngati fungicide ozizira zakumwa pansi pa GMP mikhalidwe, ndi ndende pazipita 250mg/L;FAO/WHO,2001).
Kutentha;matenthedwe kuwonongeka kwa poizoni ndi zokometsera mpweya wolimbikitsa.
