Product Name : Opti c al brightener OB-1

Identification
Synonyms Benzoxazole,2,2'-(vinylenedi-p-phenylene)bis- ; Fluorescent brightener 393
Molecular Formula C ₂₈ H ₁₈ N ₂ O ₂
Molecular Weight 414.45
CAS Number 1533-45-5
EINECS/ELINCS 216-245-3

Properties
Appearance Green yellowish powder
Solubility in water insoluble
Stability Stable under ordinary conditions.

Specification
Application
OB-1 is use d to increase the whiteness of polyester and polyamide fibers as well as high temperature engineering plastics, including polycarbonates, polyesters, and polyamides (nylon). The product can also be used in styrenic and acrylic polymers.

Packing and Storage
Packing In 25kg net cardboard drum
Storage Store the product in a cool, dry, well-ventilated area. Keep tightly closed.

Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight;

For those high value products, you just need to freight and certain product cost. When we both cooperate for

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C or Alibaba trade insurance. You can choose the one which is convenient for you.

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)

or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on

where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide

for you all are qualified. We will have goods

tested and provide COA before delivery for sure.