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Optical Brighteners For Plastic, Resin

B
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荧光增白剂OB新 — O
D

荧光增白剂351新 — O

荧光增白剂KSB新 — O

MST — O

P

荧光增白剂4bk新 — O

荧光增白剂KCB新 — O

Intermediate

E

O
4
O
O
F
2
O
O
O
2
O
O

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E

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L
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i

B
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P
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F
O

3
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