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



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

  • Model NO.: 99%
  • Purity: 99 % Min
  • Melting Point: 310-315 Deg C
  • Loss on Drying: 0.5% Max
  • Transport Package: 25kg Net Cardboard Drum
  • Specification: 99% min
  • Origin: China
  • CAS No.: 18600-59-4
  • Formula: C22h12n2o4
  • Certification: REACH
  • Environmental Protection: No
  • Color: Yellow
  • Appearance: Powder

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)
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:
UV-3638 18600-59-4 2, 2′-Benzene-1, 4-Diylbis (4H-3, 1-benzoxazin-4-one)
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.
Purity 99% min
Loss on drying 0.5% max
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.

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


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