NICOTINAMIDE
Chiyambi
Niacinamide, yomwe imadziwikanso kuti nicotinamide, vitamini B3 kapena vitamini PP, ndi vitamini yosungunuka m'madzi ndipo ndi ya mavitamini a B. Gawo la niacinamide m'mapangidwe awiriwa a coenzyme m'thupi la munthu lili ndi mphamvu zowonjezera Chemicalbook hydrogen ndi dehydrogenation, zomwe zimagwira ntchito mu biochemical oxidation. Kutumiza kwa haidrojeni kumatha kulimbikitsa kupuma kwa minofu, njira ya biochemical oxidation ndi kagayidwe kachakudya, komwe ndikofunikira kwambiri pakusunga umphumphu wa minofu yabwinobwino, makamaka khungu, kugaya chakudya ndi dongosolo lamanjenje. Ikakhala yoperewera, imayambitsa prosthema chifukwa kupuma ndi kagayidwe ka maselo zimakhudzidwa.
Kapangidwe ka mankhwala
Niacinamide ndi ufa woyera wooneka ngati singano kapena kristalo, wopanda fungo kapena wonunkha pang'ono, komanso wowawa pang'ono. Kuchuluka kwake ndi 1.4, ndipo malo osungunuka ndi 129-131℃. 1g ya mankhwalawa imasungunuka mu 1mL ya madzi, 1.5mL ya ethanol kapena 10mL ya glycerine, ndipo sisungunuka mu ether. Ndi yokhazikika pang'ono. Imalimbana ndi asidi, alkali ndi kutentha kwambiri. Ndi yokhazikika ku kuwala ndi kutentha mumlengalenga wouma. Ikatenthedwa mu alkaline kapena acidic solutions, imapanga niacin.
Ntchito ya thupi
Mphamvu yabwino yolimbana ndi makwinya Mphamvu yabwino yolimbana ndi makwinya ya niacinamide ndi yakuti imatha kuyambitsa ChemicalbookATP, kupereka mphamvu ku maselo a keratin, kuwonjezera kapangidwe ka collagen, komanso kukhala ndi mgwirizano wabwino, womwe ungagwiritsidwe ntchito ndi zosakaniza zina zotsutsana ndi makwinya. Kafukufuku wambiri kunyumba ndi kunja kwa dziko lapansi wasonyeza kuti niacinamide imatha kuchepetsa bwino kupezeka kwa chitetezo chamthupi cha khungu pansi pa kuwala kwa ultraviolet.
