Vitamin B2 Riboflavin Cas: 83-88-5
| Catalog Number | xwm 91863 |
| Khoom npe | Vitamin B2 Riboflavin |
| CAS | 83-88-5 : kuv |
| Molecular Formula | C17H20N4O6 |
| Molecular Luj | 376.36 ib |
| Cov ntaub ntawv khaws cia | 2-8 ° C |
| Harmonized tariff Code | 29362300 ib |
Khoom Specification
| Qhov tshwm sim | Yellow crystal hmoov |
| Assay | 99% min |
| Melting point | 290 ° C (txog) (lit.) |
| alpha | -135 º (c = 5, 0.05 M NaOH) |
| Boiling point | 504.93 ° C (kev kwv yees kwv yees) |
| ceev | 1.2112 (kev kwv yees kwv yees) |
| Refractive Index | -135 ° (C = 0.5, JP Method) |
| Fp | 9 ℃ |
| solubility | Soluble me ntsis hauv dej, xyaum insoluble hauv ethanol (96 feem pua).Cov kev daws teeb meem deteriorate ntawm raug lub teeb, tshwj xeeb tshaj yog nyob rau hauv lub xub ntiag ntawm alkali.Nws qhia txog polymorphism (5.9). |
| pka ua | 1.7 (ntawm 25 ℃) |
| tsw | Me ntsis tsw |
| PH | 5.5-7.2 (0.07g / l, H2O, 20 ° C) |
| PH Range | 6 |
| Dej Solubility | 0.07 g / L (20 ºC) |
| rhiab heev | Lub teeb Sensitive |
| Kev ruaj ntseg | Stable, tab sis lub teeb-sensitive.Tsis sib haum nrog cov muaj zog oxidizing cov neeg ua haujlwm, txo cov neeg ua haujlwm, cov hauv paus, calcium, hlau ntsev.Tej zaum yuav muaj dej rhiab heev. |
Vitamin B2 (riboflavin) yog tsim los ntawm poov xab los ntawm qabzib, urea, thiab mineral ntsev nyob rau hauv ib tug aerobic fermentation.
Khoom noj khoom haus muaj nyob rau hauv mis nyuj, qe, malted barley, siab, raum, plawv, nplooj zaub.Richest natural source yog poov xab.Cov nyiaj feeb tam sim no muaj nyob rau hauv tag nrho cov nroj tsuag thiab tsiaj txhu.Vitamin (enzyme cofactor).
Vitamin B2;Vitamin cofactor;LD50 (rat) 560 mg/kg ip.
riboflavin (Vitamin B2) yog siv rau hauv kev npaj tu tawv nqaij ua ib qho emollient.Nws tuaj yeem pom nyob rau hauv cov khoom siv tshuaj pleev thaiv hnub ua cov tshuaj pleev thaiv hnub.Medicinally, nws yog siv rau kev kho mob ntawm daim tawv nqaij lesions.
Riboflavin yog cov dej-soluble vitamin b2 uas yuav tsum tau rau cov tawv nqaij noj qab haus huv thiab lub tsev thiab tswj cov ntaub so ntswg ntawm lub cev.nws yog daj rau txiv kab ntxwv-daj crystalline hmoov.Nws ua raws li coenzyme thiab cov cab kuj ntawm hydrogen.Nws ruaj khov rau cua sov tab sis tuaj yeem yaj thiab poob hauv dej ua noj.nws yog qhov ruaj khov rau kev khaws cia.cov khoom muaj xws li nplooj zaub, cheese, qe, thiab mis nyuj.
Kev mob hnyav riboflavin tsis txaus yog hu ua ariboflavinosis, thiab kev kho lossis tiv thaiv tus mob no tsuas yog cov pov thawj ntawm riboflavin.Ariboflavinosis feem ntau yog txuam nrog ntau yam vitamin deficiency raws li qhov tshwm sim ntawm alcoholismin tsim lub teb chaws.Vim tias muaj ntau cov enzymes xav tau riboflavin ua coenzyme, qhov tsis txaus tuaj yeem ua rau muaj ntau yam txawv txav.Hauv cov neeg laus seborrheicdermatitis, photophobia, peripheral neuropathy, anemia, andoropharyngeal hloov nrog rau angular stomatitis, glossitis, thiab cheilosis, feem ntau yog thawj cov tsos mob ntawm riboflavin deficiency.Nyob rau hauv cov me nyuam, cessation ntawm kev loj hlob kuj tshwm sim.Raws li qhov tsis muaj peev xwm nce ntxiv, cov kab mob hnyav zuj zus mus txog thaum tuag.Riboflavin tsis muaj peev xwm kuj tuaj yeem tsim cov txiaj ntsig teratogenic thiab hloov cov hlau tuav ua rau ntshav ntshav.
