The Laboratory tubes

Ngwaahịa

Beta Arbutin 497-76-7 na-egbuke egbuke akpụkpọ

Nkọwa dị mkpirikpi:

Aha ngwaahịa:beta arbutin
Ụdị okwu:β-arbutin
Aha INCI: -
Nọmba CAS:497-76-7
EINECS:207-850-3
Ogo:nyocha 99.5% site na HPLC
Usoro ihe omimi:C12H16O7
Arọ molikula:272.25


Nkọwa ngwaahịa

Mkpado ngwaahịa

Ụgwọ:T/T, L/C
Isi mmalite ngwaahịa:China
Ọdụ ụgbọ mmiri:Beijing/Shanghai/Hangzhou
Nye iwu (MOQ):1 n'arọ
Etiti oge:3 ụbọchị ọrụ
Ike mmepụta:1000kg / ọnwa
Ọnọdụ nchekwa:Echekwara ya na ebe dị jụụ, ebe akọrọ, okpomọkụ ụlọ.
Ihe ngwugwu:drum
Nha ngwugwu:1kg / drum, 5kg / drum, 10kg / drum, 25kg / drum

beta arbutin

Okwu mmalite

A na-eji β-Arbutin mee ihe dị ka ihe na-acha ọcha maka ịchịkwa ọgbọ nke pigmenti melanin, nke bụ ihe na-eme ka ọkpụkpụ na agba agba.

A maara ya dị ka ihe dị na ahịhịa ericaceous nke a na-akpọ akwụkwọ bearberry.Discoloration na freckles na-eme n'ihi ikuku oxygen na-arụ ọrụ nke na-emepụta na akpụkpọ ahụ site na ikpughe na UV na ìhè anyanwụ, nchekasị, mmetọ ikuku, wdg, nke na-eme ka tyrosinase na enzyme na-arụ ọrụ na-akwalite ntụgharị nke tyrosine na melanocytes (sel pigmenti) na pigmenti melanin.A na-ekwu na β-Arbutin gosipụtara mmetụta ịcha ọcha site na ibelata mmepụta nke melanin pigmenti site na ịrụ ọrụ ozugbo na tyrosinase na melanocytes.

Nkọwapụta (nnwale 99.5% nke HPLC)

Nnwale ihe

Ọkọlọtọ

Ọdịdị White crystalline ntụ ntụ
Nyocha 99.5% nkeji
Ebe mgbaze 198.5-201.5 ℃
Ịdị ọcha nke ngwọta mmiri Nghọta, enweghị agba, ọ nweghị ihe kwụsịtụrụ
PH uru nke 1% aqueous ngwọta 5-7
Ntụgharị anya pụrụ iche [a]D20= -66±2°
Arsenic ≤2pm
Hydroquinone ≤10ppm
Igwe dị arọ ≤10ppm
Ọnwụ na ihicha ≤0.5%
Ihe fọdụrụ mgbanye ≤0.5%
Ọrịa nje Ihe nje bacteria ≤300cfu/g
Fungus ≤100cfu/g

  • Nke gara aga:
  • Osote: