D-(+)-Xylose CAS 58-86-6 Purity > 99.5% (HPLC) Hoobkas Zoo
Shanghai Ruifu Chemical Co., Ltd. yog ib qho ntawm cov neeg muag khoom ntawm D-(+)-Xylose (ntoo Qab Zib) (CAS: 58-86-6) nrog cov khoom zoo, purity> 99.5% (HPLC), muaj peev xwm ntau lawm 15000 tons ib xyoos twg.Peb D-(+)-Xylose tau dav muag nyob rau hauv domestic thiab txawv teb chaws markests, siab ntseeg los ntawm peb cov neeg muas zaub.Peb tuaj yeem muab kev xa khoom thoob ntiaj teb, me me thiab ntau qhov ntau.Yog tias koj xav tau D-(+)-Xylose,Please contact: alvin@ruifuchem.com
| Tshuaj npe | D-(+)-Xylose |
| Synonyms | D-Xylose;D(+)-Xylose;(+) - Xylose;Dextro-Xylose;Ntoo Qab Zib;D-(+) - Ntoo Qab Zib;α-d-Xylopyranose |
| Tshuag xwm txheej | Hauv Tshuag, Muaj Peev Xwm Ntau Lawm 15000 Tons ib xyoos |
| CAS Nr | 58-86-6 : kuv |
| Molecular Formula | C5H10O5 |
| Molecular Luj | 150.13 Nws |
| Melting Point | 147.0 ~ 151.0 ℃ (lit.) |
| Qhov ntom | 1.525 Nws |
| rhiab heev | Hygroscopic |
| Solubility | Dawb Soluble hauv dej, Soluble hauv Kub Ethanol (95%) |
| Cia Temp. | Muab ntim rau hauv Qhuav, Khaws ntawm Chav Kub |
| COA & MSDS | Muaj |
| Hom | Ruifu Tshuaj |
| Hazard Codes | Xis - Irritant | RTECS | ZF2285000 |
| Risk Statements | 36/37/38 ib | F | 3 |
| Cov lus hais txog kev nyab xeeb | 24/25-36-26 ib | TSCA | Yog lawm |
| WGK Germany | 2 | HS Code | 294 000 100 00 Nws |
| Cov khoom | Kev soj ntsuam Standards | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb Crystals lossis Crystalline Hmoov;Qab zib saj | Ua raws |
| Kev txheeb xyuas | IR: Ua raws li Xylose CRS Sectrum | Ua raws |
| Melting Point | 147.0 ~ 151.0 ℃ | 150.2 ℃ |
| Kev sib hloov tshwj xeeb [α]20/D | +18.5 ° txog +19.5 ° C = 4% hauv H2O | + 19.45 ° C |
| State of Solution (Kev xa tawm) | ≥96.0% | 99.7% |
| Chloride (Cl) | ≤ 0.005% | <0.005% |
| Sulfate (SO4) | ≤ 0.005% | <0.005% |
| Hlau (Fe) | ≤ 5ppm | <5 ppm |
| Heavy Metals (raws li Pb) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤ 0.5 mg / kg | <0.5 mg/kg |
| Coj | ≤ 0.5 mg / kg | 0.24 mg/kg |
| Poob rau ziab | ≤ 0.30% | 0.11% |
| Residue ntawm Ignition (Sulfated) | ≤ 0.05% | 0.01% |
| Purity / Analysis Method | > 99.5% (HPLC) | 99.92% |
| Tus nqi pH | 5.0 rau 7.0 | 6.4 |
| Tag Nrho Phaj suav | ≤100 CFU / g | <50 CFU/g |
| Coliforms | ≤ 3 MPN / g | Tsis Pom |
| Tag nrho cov pwm thiab cov poov xab | ≤ 50 CFU / g | <50 CFU/g |
| Cov kab mob pathogenic (Salmonella, Shigella, Staphylococcus Aureus) | Tsis Pom | Tsis Pom |
| Xaus | Los ntawm Kev Tshawb Fawb Kev Pom Zoo nrog Tus Qauv ntawm GB / T23532-2009 | |
| Kev siv tseem ceeb | Khoom noj khoom haus additives;Cov khoom qab zib;Pub Additives;lwm. | |
Xylose muaj tsis pub tsawg tshaj 98.0 feem pua thiab tsis ntau tshaj 102.0 feem pua ntawm C5H10O5, xam nyob rau hauv qhuav hauv paus.
Ntim thiab khaws cia-Txuag hauv cov thawv nruj ntawm qhov chaw tswj qhov kub thiab txias.
USP Reference cov qauv <11>-
USP Fructose RS
USP Xylose RS
Xim ntawm kev daws-Ib qho tshuaj tshiab tshiab (1 ntawm 10) yog qhov tseeb thiab tsis muaj xim.
Kev txheeb xyuas-
A: Infrared Absorption <197A>.
B: Lub sijhawm khaws cia ntawm lub ncov loj hauv chromatogram ntawm Assay kev npaj sib raug rau qhov ntawd nyob rau hauv chromatogram ntawm Standard npaj, raws li tau txais hauv Assay.
Kev sib hloov tshwj xeeb <781S>: ntawm +18.2° thiab +19.4°.
Kev tshuaj ntsuam xyuas: 100 mg ib mL, hauv 0.012 N ammonium hydroxide.
Poob ntawm ziab <731>-Siv 2 g mus rau 5 g ntawm lub siab tsis tshaj 50 mm mercury ntawm 60 ° mus rau qhov hnyav, tam sim no ntawm cov cua qhuav tau dhau los ntawm qhov cub thaum lub sij hawm ziab kom tshem tawm cov dej vapor: nws poob tsis ntau tshaj 0.1% ntawm nws qhov hnyav.
Residue ntawm ignition <281>: tsis ntau tshaj 0.05%.
Hlau <241>- Dissolve 2.0 g hauv 45 mL dej, thiab ntxiv 2 mL ntawm hydrochloric acid: qhov txwv yog 5 ppm
Hnyav hlau <231>-Dissolve 2.0 g hauv dej kom 25 mL ntawm kev daws: qhov txwv yog 0.001%.
Chromatographic purity-Siv cov chromatogram ntawm Assay npaj, tau raws li qhia hauv Assay.Xam cov feem pua ntawm txhua tus neeg impurity, tsis suav nrog cov kuab tshuaj peaks, hauv ib feem ntawm Xylose noj:
100 (ri / rS)
nyob rau hauv uas ri yog cov lus teb ntawm txhua tus neeg impurity;thiab rS yog qhov suav ntawm tag nrho cov lus teb hauv chromatogram: tsis pub ntau tshaj 1.0% ntawm ib tus neeg tsis huv pom, thiab cov txiaj ntsig ntawm txhua tus neeg impurities pom tsis ntau tshaj 2.0%.
Assay-
Txawb theem-Siv degassed sib tov ntawm acetonitrile thiab dej (75:25).
Kev tsim nyog rau kev daws teeb meem-Npaj cov tshuaj hauv Mobile theem, uas muaj txog 10 mg ntawm USP Xylose RS thiab 0.2 mg ntawm USP Fructose RS ib mL.
Cov txheej txheem kev npaj-Dissolve qhov hnyav hnyav ntawm USP Xylose RS nyob rau theem Txawb kom tau txais kev daws teeb meem uas paub txog qhov concentration ntawm 10 mg ib mL.
Assay npaj-Hloov txog 100 mg ntawm Xylose, raug hnyav, mus rau 10-mL ntim ntim, yaj hauv thiab dilute nrog Txawb theem rau ntim, thiab sib tov.
Chromatographic system (saib Chromatography <621>)-Cov kua chromatograph yog nruab nrog 192-nm ntes thiab 4.6-mm × 15-cm kem uas muaj cov ntim L8.Qhov ntsuas kub yog khaws cia ntawm 30 °, thiab tus nqi ntws yog li 2 mL ib feeb.Chromatograph qhov kev daws teeb meem tsim nyog, thiab sau cov lus teb siab tshaj plaws raws li qhia rau Kev Ua Haujlwm: qhov kev daws teeb meem, R, nruab nrab ntawm cov xylose thiab fructose peaks tsis tsawg dua 2.0.Qhov sib txawv tus qauv sib txawv rau kev txhaj tshuaj replicate tsis ntau tshaj 2.0%.
Cov txheej txheem-Kev txhaj tshuaj sib npaug (kwv yees li 25 µL) ntawm Kev Tshawb Fawb Kev Npaj thiab Kev Npaj Txuj Ci rau hauv chromatograph, sau cov chromatograms, thiab ntsuas cov lus teb rau qhov loj peaks.Xam qhov ntau, hauv mg, ntawm C5H10O6, hauv ib feem ntawm Xylose coj los ntawm cov mis:
10C (rU / rS)
nyob rau hauv uas C yog qhov concentration, nyob rau hauv mg ib mL, ntawm USP Xylose RS nyob rau hauv tus txheej txheem npaj;thiab rU thiab rS yog cov lus teb siab kawg uas tau txais los ntawm Assay npaj thiab Standard npaj, feem.
Pob: Aluminium ntawv ci hnab, 25kg / hnab, 25kg / Cardboard Nruas, los yog raws li tus neeg yuav tsum tau muaj.
Cia txias:Hygroscopic.Khaws rau hauv cov thawv ntim khoom ntawm qhov chaw txias, qhuav thiab cua tshuab kom deb ntawm cov khoom tsis sib xws.Tiv thaiv los ntawm lub teeb thiab noo noo.Incompatible nrog muaj zog oxidizing neeg sawv cev.
Yuav Yuav Li Cas?Thov hu rauDr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
15 Xyoo Kev Paub?Peb muaj ntau tshaj li 15 xyoo ntawm kev paub nyob rau hauv kev tsim thiab export ntawm ib tug ntau yam ntawm zoo tshuaj intermediates los yog zoo tshuaj.
Kev lag luam loj?Muag rau kev lag luam hauv tsev, North America, Europe, India, Kauslim, Nyiv, Australia, thiab lwm yam.
Qhov zoo?Superior zoo, tus nqi pheej yig, kev pabcuam tshaj lij thiab kev txhawb nqa kev pabcuam, xa khoom sai.
ZooKev lees paub?Kev tswj xyuas nruj nruj.Cov cuab yeej tshaj lij rau kev txheeb xyuas suav nrog NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, KF, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, thiab lwm yam.
Cov qauv?Cov khoom lag luam feem ntau muab cov qauv dawb rau kev soj ntsuam zoo, tus nqi thauj khoom yuav tsum tau them los ntawm cov neeg siv khoom.
Factory Audit?Lub Hoobkas tshawb xyuas txais tos.Thov teem caij ua ntej.
MOQ?Tsis muaj MOQ.Kev txiav txim me me tau txais.
Lub sij hawm xa tuaj? Yog hais tias nyob rau hauv Tshuag, peb hnub shipping guaranteed.
Kev thauj mus los?Los ntawm Express (FedEx, DHL), los ntawm Cua, los ntawm hiav txwv.
Cov ntaub ntawv?Kev pab cuam tom qab muag: COA, MOA, ROS, MSDS, thiab lwm yam tuaj yeem muab tau.
Kev cai Synthesis?tuaj yeem muab cov kev pabcuam sib xyaw ua ke kom haum rau koj cov kev xav tau tshawb fawb.
Cov nqe lus them nqi?Proforma invoice yuav raug xa ua ntej tom qab kev pom zoo ntawm kev txiav txim, kaw peb cov ntaub ntawv hauv tuam txhab nyiaj.Kev Them Nyiaj los ntawm T / T (Telex Transfer), PayPal, Western Union, thiab lwm yam.
D-(+)-Xylose (ntoo Qab Zib) (CAS: 58-86-6), feem ntau hu ua ntoo qab zib, yog ib tug natural 5-carbon qab zib (pentose) tau los ntawm xylan-nplua nuj feem ntawm hemicellulose, muaj nyob rau hauv cov nroj tsuag cell phab ntsa thiab fiber ntau.Xylitol yog ib qho khoom qab zib.Ib tus neeg mob ntshav qab zib tuaj yeem tsim Xylitol hauv lub cev nws tus kheej, txawm tias nws tsis noj cov khoom Xylitol.Nyob rau hauv lub ntuj, Xylitol feem ntau tawm hauv ntau hom txiv hmab txiv ntoo thiab zaub.Tab sis cov ntsiab lus tsawg heev.Rau kev lag luam siv, Xylitol feem ntau yog tsim los ntawm pob kws, qab zib bagasse, birch ntoo thiab lwm yam.Nws yog ntuj thiab noj qab nyob zoo sweetener.Los ntawm cov tsos, nws yog dawb crystal thiab zoo li dawb qab zib.Xylitol yog cov khoom qab zib tshaj plaws ntawm cov polyols.Nws muaj qhov txias thiab refreshing saj thiab muaj qhov qab zib zoo ib yam li sucrose, tab sis cov calories ntawm xylitol qis dua sucrose, txog qhov sib npaug ntawm cov piam thaj.Xylitol yog ib qho khoom qab zib zoo tshaj plaws thiab nws yog qhov hloov pauv zoo rau cov piam thaj thiab sucrose.L-Arabinose yog dawb crystalline hmoov nrog qab zib tsw thiab melting point ntawm 154-158 ℃.Nws yooj yim soluble hauv dej thiab glycerol, me ntsis soluble hauv ethanol thiab tsis soluble hauv ether.Nws yog ruaj khov nyob rau hauv cov xwm txheej ntawm tshav kub thiab acid.Raws li cov khoom qab zib qis qis, nws tau raug pom zoo los ua cov khoom noj muaj txiaj ntsig zoo los ntawm American Bureau of Food and Drug Supervision thiab Health and Human Services Department of Japan.Tsis tas li, nws tau tso cai tshiab cov khoom noj khoom haus los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Noj Qab Haus Huv ntawm Tuam Tshoj.
Muaj nuj nqi
1. D-(+)-Xylose ua cov khoom qab zib tsis muaj calorie, D-(+)-Xylose yog siv los ua cov roj antioxidant, kev npaj kho mob, cov khoom siv raw ntawm caramel xim thiab ntau yam tshuaj tsw qab, thiab lwm yam.
2. D-(+)-Xylose tuaj yeem siv los ua qhov hloov pauv hauv cov nqaij thiab cov khoom noj.Nws tuaj yeem siv los ua cov khoom siv raw ntawm cov nqaij essence thiab antioxidant.
Daim ntawv thov
1. Los tsim cov pos hniav, zom cov pos hniav, toffee, khoom qab zib mos, jelly, chocolate, zom ntsiav tshuaj thiab lwm yam, tuaj yeem ua kom txias hauv caj pas, ntxuav cov hniav thiab tiv thaiv cariogenic.
2. Ua es tsis txhob sucrose ntxiv rau hauv cov dej qab zib, mis nyuj, qhob cij, khaws cia txiv hmab txiv ntoo, biscuit, yogurt, jam, porridge thiab lwm yam, kom ntev & zoo dua qab zib vim nws tsis-fermentability los ntawm poov xab.
3. Ntxiv rau hauv cov khoom siv tshuaj pleev ib ce thiab tshuaj txhuam hniav, tsis muaj qhov nplaum thiab ua kom zoo dua qub.Xylitol tuaj yeem khaws cov dej noo thiab txhim kho cov tawv nqaij tawv zoo ib yam li glycerin.
4. Ua zoo hloov sucrose, ua cov tais diav xws li qaub & qab zib nqaij npuas lossis ntses, muaj kev nyab xeeb rau cov neeg mob ntshav qab zib.Peb cov lus qhia tsis pub ntau tshaj 40g / hnub rau cov neeg laus thiab ib nrab rau menyuam yaus.
