C
A
P
- S
  - S
  - S
  - S
  - S
- I
N
D
C
- P
- C
- E
- G
C

Optical Brighteners For Plastic, Resin

I
J

J

CA, A, S,S<

p

荧光增白剂OB新 — S
P

M

T

A

a

P

4

Intermediate

I

S
S
S
S
F
2
S
S
S
S
B
A

B
V
R

<

<

J

E1
I
F2
B
B2
I
E2
L
V2
N
E2
L

r

A
I
F
S
S
C
C
1
E
C
C

3
T
s

© Shandong Subang Ranipal WG Brightner KCB Fluorescent Whitening Agent Vbl Optical Brightener 52 Optical Brightening Agents >