Tuam Tshoj Nicotinamide (Niacinamide) Cov Chaw Tsim Khoom CAS 98-92-0
Kev Taw Qhia Nicotinamide:
| INCI | Cov tshuaj molecule | MW |
| Nicotinamide, Pyridine-3-Carboxyamide | C6H6N2O | 122.13 |
Kev yaj: Dawb yaj hauv dej thiab cawv, yaj hauv glycerin
Niacinamide los yog nicotinamide (NAM) yog ib hom vitamin B3 uas pom muaj nyob rau hauv cov khoom noj thiab siv ua cov khoom noj khoom haus ntxiv thiab tshuaj. Ua ib qho khoom noj khoom haus ntxiv, nws siv los ntawm qhov ncauj los tiv thaiv thiab kho pellagra (niacin deficiency). Txawm hais tias nicotinic acid (niacin) siv tau rau lub hom phiaj no, niacinamide muaj qhov zoo ntawm kev tsis ua rau daim tawv nqaij liab. Ua ib qho tshuaj pleev, nws siv los kho pob txuv. Nws yog ib qho vitamin uas yaj hauv dej.
Cov kev mob tshwm sim tsis ntau. Yog noj ntau dhau, tej zaum yuav muaj teeb meem rau daim siab. Cov tshuaj ib txwm muaj kev nyab xeeb rau kev siv thaum cev xeeb tub. Niacinamide yog ib yam tshuaj hauv tsev neeg vitamin B, tshwj xeeb yog cov vitamin B3 complex. Nws yog ib qho amide ntawm nicotinic acid. Cov khoom noj uas muaj niacinamide suav nrog poov xab, nqaij, mis nyuj, thiab zaub ntsuab.
Niacinamide tau tshawb pom ntawm xyoo 1935 thiab 1937. Nws nyob hauv Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb cov npe ntawm Cov Tshuaj Tseem Ceeb. Niacinamide muaj nyob rau hauv cov tshuaj generic thiab cov tshuaj uas yuav tau yam tsis tas yuav muaj ntawv yuav. Hauv kev lag luam, niacinamide yog ua los ntawm nicotinic acid (niacin) lossis nicotinonitrile. Hauv ntau lub tebchaws, cov nplej tau ntxiv niacinamide rau hauv.
NicotinamideDaim Ntawv Thov:
Nws yog ib feem ntawm Vitamin B, koom nrog hauv kev ua haujlwm hauv lub cev, tuaj yeem siv los tiv thaiv pellagra lossis lwm yam kab mob niacin defection. Nws siv rau kev muag tshuaj, khoom noj khoom haus ntxiv. Cov khoom no ua haujlwm raws li nram no:
Ua ntej, melanin nyob tob hauv daim tawv nqaij ntawm melanin cell, tab sis lub sijhawm no, nws kuj nyob sab hauv, tom qab ntawd cov tentacles raug xa mus rau cov hlwb keratin nyob ib puag ncig, nicotinamide tuaj yeem cuam tshuam kev hloov pauv ntawm melanin, ua rau melanin tau melanocyte nyob sab hauv kom tsis txhob tawm los, yog li yuav tsis txuas ntxiv tsim melanin melanin cell, Qhov thib ob, melanin yuav tsis pom los ntawm tib neeg lub qhov muag ntawm daim tawv nqaij, yog li ua tiav cov txiaj ntsig dawb.
Qhov thib ob, niacinamide ua pov thawj tias muaj cov txiaj ntsig zoo ntawm saccharification, tshwj xeeb tshaj yog tom qab xyoo 2015, lo lus "saccharification" tau tshawb fawb tob heev, ntau yam kab mob physiological qhia tau tias nrog saccharification (maillard reaction), cov khoom tsim los ntawm saccharification yog xim av, tuaj yeem ua rau daim tawv nqaij zoo li dub, yog li mash tsis kam kuj pab ua kom dawb.ves, pub additives, cosmetic, thiab lwm yam.
Hauv kev sim tshuaj uas muaj 20 tus neeg koom, kev siv nicotinamide ntau zaus ntawm qhov concentration qis (0.2%) kuj tau zoo rau kev txo qhov kev tiv thaiv kab mob ntawm daim tawv nqaij uas tshwm sim los ntawm kev siv hluav taws xob UV nqaim uas zoo li lub hnub ci. 0.2% ntawm qhov concentration yog qhov zoo, thiab peb feem ntau siv cov khoom siv saib xyuas daim tawv nqaij uas muaj nicotinamide concentration feem ntau yog siab dua 2%, qhov concentration zoo tshaj plaws ntawm 4% ~ 5%. Yog li thov nicotinamide extract ua ntej siv tshuaj pleev thaiv hnub.
Cov lus qhia ntawm Nicotinamide:
| Khoom | Tus Qauv |
| Tsos (20oC) | hmoov crystalline dawb |
| Melting point: | 128-131 °C |
| Poob thaum ziab: | <0.5% |
| Cov seem ntawm kev hlawv: | <0.1% |
| Cov hlau hnyav: | <0.003% |
| Yooj yim carbonizable: | tsis muaj xim ntau dua li Matching Fluid A |
| Kev Ntsuas: | 98.5% -101.5% |
Pob khoom：
25kgs/nruas, fiber nruas nrog polyethylene hnab sab hauv
Lub sijhawm siv tau:
24 lub hlis
Kev Khaws Cia:
Kev ntxoov ntxoo thiab kev kaw cia
