UV-3638 18600-59-4 2, 2′-Benzene-1, 4-Diylbis (4H-3, 1-benzoxazin-4-one)

Product Name: 2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one) ( UV 3638)

Identification: Synonyms: 4H-3,1-Benzoxazin-4-one,2,2'-p-phenylenebis-(8CI); 2,2'-(1,4-Phenylene)bis(4H-3,1 -benzoxazin-4-one); 2,2'-(1,4-Phenylene)bis[3,1-benzoxazin-4-one]; 2,2'-p-Phenylenebis(3,1-benzoxazin-4-one); 2,2'-p-Phenylenebis[4H-3,1-benzoxazin-4-one]; CEi-P; CEi-P-A; Cyasorb UV 3638; Pionin ZA 101; Molecular Formula:C22H12N2O4 Molecular Weight: 368.34 CAS Number:18600-59-4 EINECS Number:418-280-1 Molecular Structure:

Properties: Melting Point: 315 °C Density: 1.41g/cm3 Boiling point: 522.8°C at 760mmHg Flash point: 224.1°C Appearance: off-white to light yellow crystalline powder ; Stability: Stable.

Specification:   ITEMS SPECIFICATIONS Purity 99% min Loss on drying 0.5% max

Application:    It is a highly efficient UV absorber for engineering plastics, especially for PET and PBT.

Packing and Storage: Packing: in 25kgs cardboard drum, packing size at 400mm*500mm or as per request.  Storage: Keep container closed when not in use. Keep in a cool and dry place

Safety information: Non-hazardous for air, sea and road freight. Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.

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. 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.