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Product name: Optical brightener KCB; Optical brightening agent KCB; Fluorescent brightener KCB; Fluorescent brightener 367; Fluorescent whitening agent KCB; optical bleaching agent KCB; OBA 367; FBA 367
CAS: 5089-22-5
C.I.NO. 367
Product application:
Mainly be used in whitening of thermoplastic, polyvinyl chloride (PVC), polypropylene (PP), polyester fiber, paint and ink, etc.
Product quality index:
Property | Typical Value, Units |
Molecular Formula | C24H14N2O2 |
Assay | 99% min. |
Molecular Weight | 362g/mole |
Appearance | Slight Yellowish powder |
Melting Point | 210-212℃ |
Volatiles | <0.15% |
Particle Size | Pass 200 mesh |


10/20/25kg/drum


We have exact inventory plans to guarantee stable supply.
We have many years’ experience of chemical logistics and dangerous chemical managers with specially trained, which ensure the safety and right of chemicals, timely logistics.
Our laboratory takes strictly testing on every lot of goods according to customers’ requirement. Meanwhile we has good relationship with the third party company SGS.
After-sales service is the important part in our service. If there are quality problems, we will actively cooperate with the customers and solve the problems early.
We expect to become good partners with our customers for long.


Q: Do you have any certificate for quality?
A: Yes, we have ISO9001:2008 quality system certificate and REACH.
Q: Can you customize products?
A: Yes, we can.
Q: Can you provide samples for quality checking before placing an order?
A: Samples are avaliable upon request, but the shipping cost should be paid by customer.
Q: How to get the price list?
A: Please inqire us by alibaba/email.
Q: What's your payment term?
A: TT/LC/DA/DP/Paypal
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