| Identification | More | [Name]
2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE | [CAS]
18600-59-4 | [Synonyms]
2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE
UV-3638
1-Benzoxazin-4-one,2,2’-(1,4-phenylene)bis-4H-3
2,2′-(p-Phenylen)di-3,1-benzoxazin
2,2''-P-PHENYLENEBIS-4H-3,1-BENZOXAZIN-4-ONE
2,2-(1,4-phenylene)bis((4H-3,1-benzoxazine-4-one)
2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one)
Cyasorb UV-3638 | [EINECS(EC#)]
418-280-1 | [Molecular Formula]
C22H12N2O4 | [MDL Number]
MFCD00356293 | [Molecular Weight]
368.34 | [MOL File]
18600-59-4.mol |
| Chemical Properties | Back Directory | [Melting point ]
315-317 °C | [Boiling point ]
522.8±20.0 °C(Predicted) | [density ]
1.41±0.1 g/cm3(Predicted) | [vapor pressure ]
0-0Pa at 20-25℃ | [storage temp. ]
Sealed in dry,2-8°C | [form ]
powder to crystal | [pka]
1.98±0.20(Predicted) | [color ]
White to Orange to Green | [Water Solubility ]
112μg/L at 20℃ | [InChI]
InChI=1S/C22H12N2O4/c25-21-15-5-1-3-7-17(15)23-19(27-21)13-9-11-14(12-10-13)20-24-18-8-4-2-6-16(18)22(26)28-20/h1-12H | [InChIKey]
BBITXNWQALLODC-UHFFFAOYSA-N | [SMILES]
C1(C2OC(=O)C3=CC=CC=C3N=2)=CC=C(C2OC(=O)C3=CC=CC=C3N=2)C=C1 | [LogP]
4.7 at 22℃ | [CAS DataBase Reference]
18600-59-4(CAS DataBase Reference) | [EPA Substance Registry System]
4H-3,1-Benzoxazin-4-one, 2,2'-(1,4-phenylene)bis- (18600-59-4) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R43:May cause sensitization by skin contact.
R53:May cause long-term adverse effects in the aquatic environment. | [Safety Statements ]
S24:Avoid contact with skin .
S37:Wear suitable gloves .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [HS Code ]
2934.99.4400 |
| Hazard Information | Back Directory | [Description]
CYASORB UV-3638 is a highly efficient and non-staining UV absorber, which is distinguishied by its superiorly low volatility, and its strong & broad range of UV light absorption together with no color contribution & excellent stabilization for polymers. White UV-3638 is designed to meet the demanding high temperature requirements for processing engineering plastics such as Nylon, PC,PET,PBT and PPO. UV-3638 is also highly effective in other poymers such as polyamides, polyacetals, polyolefins fibers, styrenics, elastomers where long term permanet UV light stability is required. | [Chemical Properties]
White powder | [Uses]
Cyasorb 3638 offers very strong and broad UV absorption with no color contribution. Possesses very good stabilization for polyesters(PET) and polycarbonates(PC).3638 is based on a benzoxaxinone structure which delivers a short-term heat stability up to 350 °C and a long term heat stability up to 160 °C.
UV 3638 is ideal for film/sheet/plate applications such as solar cell, window film, etc. | [Application]
UV-3638 can be readily incorporated in the polymers within the dosage range of 0.1-10% by weight through conventional techniquire such as powder, solution, or melt blending(e.g. extrusion compounding). It can be used alone or in a variety of blends and combinations with antioxidants, phosphites and other light stabilizers where often a synergistic performance is observed. Basically, the dosage level for UV-3638 can be expectd to be 1/3 of the exsited benzotriazole type UV absorbers with the nearly same efficency of UV screenning.
Engineering plastics (Nylone/plycarbonate/PET/PBT/PPO/PPS..etc)
Because of it's superior heat resistance, so its volatility is extremely low during the processing of engineering plastics at temperatures above 300°C. Also, it offering a very strong & broad UV absorption with no color contribution and exllent stabilzation. so it will allow the recycling or reworking of scrap without significant lowss of the UV light stability. UV-3638 meets the stringent requirement of applications where light transmission and optical properties are critical.
Other polymers
Because of its high absorptivity in the range of 300-360nm, plus its extremely low volatility, assures maximal resistance to UV light degradation even during long term indoor and out door exposure. |
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