Nicotinamide/CAS:98-92-0
Tsananguro pfupi:
Zita rechigadzirwa: Nicotinamide
Rudzi:ZA-N
CAS:98-92-0
MF:C6H6N2O
MW: 122.12
MAUMBIRWO:
Kuwanda: 1.40
pokunyunguduka: 182 °C
Niacinamide ipfu chena yakaita sekristaro kana kristalo, isina hwema kana kuti inonhuwa zvishoma, ine kuravira kunovava zvishoma. Huremu hwayo i1.4, uye nzvimbo yayo yekunyunguduka i129-131℃. 1g yechigadzirwa ichi inogona kunyungudutswa mu1mL yemvura, 1.5mL yeethanol, kana 10mL yeglycerol, asi kwete mu ether. pH ye10% aqueous solution i6.5-7.5. Ine hygroscopicity isina kusimba. Yakasimba, inodzivirira acids, alkalis, uye tembiricha dzakakwirira. Yakasimba kuchiedza nekupisa mumhepo yakaoma, asi kana yapiswa mualkaline kana acidic solutions, inoumba nicotinic acid. LD50 yemuromo mumakonzo i2.5-3.5g/kg, uye kukosha kweADI hakuna kutaurwa zvakananga (ECC, 1990).
tsanangudzo
| ZVINHU | ZVINHU ZVINOKOSHA | KUYEDZA MHEDZISIRA |
| Chitarisiko | Upfu hwekristalline chena | Zvinotevedzera |
| Kunyunguduka | Inonyungudika mumvura uye mune anhydrous ethanol, inonyungudika zvishoma mumethylene chloride | Zvinotevedzera |
|
Kuzivikanwa | A: Kunyudzwa kweinfrared | Zvinotevedzera |
| B:Kunyudzwa kweUltraviolet. Chiyero cheA245/A262 i0.63-0.67 | 0.66 | |
| C. Chromatrzphy yakatetepa | Zvinotevedzera | |
| Kuyedza (%) | 99.0~101.0 | 100.1 |
| Nzvimbo yekunyunguduka (□) | 128~131 | 128.7-130.2 |
| Kuonekwa kwemhinduro | Hapana ruvara rwakanyanya kupfuura mhinduro ye BY7 | Zvinotevedzera |
| PH | 6.0~7.5 | 6.86 |
| Zvinhu zvakasanganiswa | Edza zvinoenderana neEP10.0 | Zvinotevedzera |
| Zvinhu zvinokwanisa kubikwa necarbon zviri nyore | Mhinduro yemuenzaniso haina ruvara rwakawanda kupfuura fluidA inoenderana nayo | Zvinotevedzera |
| Kurasikirwa pakuomeswa (%) | 20.5 | 0.03 |
| Dota rakanyungudutswa (%) | 20.1 | 0.0 |
| Zvasara pakupisa (%) | ≤0.1 | 0.0 |
| Simbi dzinorema (mglkg) | ≤20 | -20 |
| MHEDZISO | ANOKODZERA (Kutevedzera zvinodiwa) ne USP2022 uye EP10.0stuyerd) | |
Kushandiswa
- Inonyorovesa, kudzora mafuta, uye kuderedza ganda rematema: Niacinamide inogona kuderedza kurasikirwa nemvura muchikamu chemukati cheganda. Kunyangwe kushanda kwayo kana ikashandiswa yoga kusina kunaka sekushandiswa kwe hyaluronic acid ne glycerin, kushanda kwayo kana ikashandiswa pamwe chete kunosvika 1+1>2; niacinamide inogona kudzikamisa ma "sebaceous glands" anonyanya kushanda, nokudaro ichikwanisa kudzora mafuta uye kuderedza ganda rematema nemapundu.
- Kugona kwakanaka kwekudzivirira makwinya: Kugona kweniacinamide kurwisa makwinya kuri mukukwanisa kwayo kumutsa ATP, kupa simba kumakeratinocytes, kuwedzera kugadzirwa kwecollagen, uye ine kugona kwakanaka kwekubatana, iyo inogona kushandiswa pamwe chete nezvimwe zvinhu zvekudzivirira makwinya.
- Kubatsira kwakanaka pakudzivirira zuva: Kukuvadzwa kunokonzerwa nemwaranzi ye ultraviolet mumuviri wemunhu hakusi kungopisa ganda chete, asiwo kudzvinyirira masoja emuviri (Chemicalbook) uye kunyange kenza yeganda. Zvidzidzo zvakawanda zvekumba nekune dzimwe nyika zvakaratidza kuti niacinamide inogona kuderedza kuitika kwekushomeka kwesimba remuviri panguva yekupiswa nemwaranzi ye ultraviolet.
- Kunyorova kwakanaka: Kana tichienzanisa nezvinhu zvakaita sevhitamini C uye resorcinol derivatives, niacinamide yakapfava uye inogona kushandiswa nevanhu vane ganda rakasiyana-siyana. Zvisinei, tinofanira kungwarira kuti ganda rikwanise kushivirira. Semuenzaniso, The Ordinary Whitening Essence ine 10% niacinamide concentration ichiri nekutsamwa. Saka, zvakanaka kuita bvunzo yekushivirira ganda usati washandisa. Ishandise chete mushure mekusimbisa kushivirira, uye panguva imwe chete, chenjerera kuti usashandise pamwe chete nezvinhu zvine acid zvakaita sesalicylic acid uye fruit acid kudzivirira kushatirwa kwakanyanya paganda.
Chinhu chinobva muvhitamini B3 uye inhibitor yePARP
Mishonga yevhitamini inobatsira mukugadzirwa kwemuviri uye inoshandiswa kudzivirira nekurapa pellagra nezvimwe zvirwere zvekushaya niacin.
Niacinamide inonyungudika mumvura zviri nani pane niacin, asi inoumba nyore nyore makemikari ane vhitamini C nemasumbu. Chiyero chacho i30-80mg/kg. Kana ikashandiswa muzvigadzirwa zvekuchengetedza ganda, inogona kudzivirira ganda rakaomarara, kuchengetedza hutano hwemasero eganda, uye kukurudzira kuchena kweganda. Kana ikashandiswa mukuchengetedza ganda, inogona kukurudzira kutenderera kweropa mumusoro, kuchengetedza bvudzi rakanaka, kukurudzira kukura kwebvudzi, uye kudzivirira kurasikirwa nebvudzi.
Kurongedza uye Kutumira
25KG/Drum kana zvichienderana nezvinodiwa nevatengi.
Ndezvezvinhu zvakajairika uye zvinogona kutumirwa negungwa nemhepo
Chengeta uye chengeta
Nguva yesherufu: Mwedzi makumi maviri nemana kubva pazuva rekugadzirwa kwayo, yakachengetwa munzvimbo inotonhorera yakaoma isina chiedza chezuva, mvura.
Imba yekuchengetera zvinhu ine mhepo, Inoomesa zvinhu zvishoma, Yakaparadzaniswa nezvinokonzera makemikari, maasidhi.
