G

T

a

M

M

C


P

P

D

P

arbutin

<

<

alpha arbutin powder (1)

A

I
A
B
C
8
4
C
U
U
K
K
S
S
S
S
W
α
β
M
2
1
O
+
-

A

1

2

3


  • Z
  • Z

  • K
    N
    S

     

     

    K

    K

  • R