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Home> Products > Inorganic Chemicals > Elementary Substances > CAS DataBase Listed 7 > CAS 7439-90-9
7439-90-9 structure 3D

7439-90-9

  • Molecular Weight: 83.798
  • Formula: C20H16O7
  • Name: 5(4H)-Oxazolone,4-[(2,3-dimethoxyphenyl)methylene]-2-phenyl-
  • Synonyms: Kr; Liquid krypton; KRYPTON 99.999%; Krypton,compressed; Krypton,refrigerated liquid; KRYPTON, PRESSURE TIN WITH 1000 ML; Krypton, refrigerated liquid (cryogenic liquid).
Properties Safety and Handling MSDS NMR Spectrum Computational chemical data
Identification of 7439-90-9 Safety Data
  • [Risk Codes]
  • R9:Explosive when mixed with combustible material
  • [Safety Statements]
  • Hazard Symbols:
  • HazardClass:2.2
Properties
  • Appearance:
  • ODOURLESS COLOURLESS, COMPRESSED LIQUEFIED GAS
  • Molecular Weight:
  • 83.798
  • Density:
  • 1.56
  • Boiling Point:
  • 819°C at 760 mmHg
  • Melting Point:
  • -157ºC
  • Flash Point:
  • 387.1°C
  • Solubility:
  • 221 mg/l

  • Stability:
  • Stable and unreactive; not combustible.
  • More Properties>>
There are 22 suppliers who can provide 5(4H)-Oxazolone,4-[(2,3-dimethoxyphenyl)methylene]-2-phenyl- with CAS No. 7439-90-9
High Purity Krypton Gas Kr with Competitive Price
  • FOB Price:100 USD/Cylinder 
  • Cas No:7439-90-9 
  • Min.Order:100/Cylinder 
  • Purity:99% ~99.9999% 
  • Supply Ability:1000 Day/Cylinder 
  • Formula:Kr 
  • Payment:L/C,D/A,D/P,T/T,Western Union,MoneyGram, 
  • Updatetime:Mar 13 2019 
Central China Special Gas Co., Ltd.
  • Category:Corporation/Limited Liability Company
  • Registered Time:2004
  • Registered Capital:US$501 Thousand - US$1 Million
  • Legal Representative:Haifeng Deng
  • Employees:51 - 100 People
  • Tel:86-734-8755555
  • Fax:86-734-63860349
  • Address:Cangjiang Heshui Industrial Park
Main Products
SF6, C3H8, He, Ne, Ar, Kr, Xe, CO, H2, SO2, Cl2, HCL, N2O, NO, NO2
Contact Supplier
Krypton
  • FOB Price:155 USD/Cubic Meter 
  • Cas No:7439-90-9 
  • Min.Order:10/cubic meter 
  • Purity:99.999% 
  • Supply Ability:2000 Month/cubic meter 
  • Formula:Kr 
  • Payment:L/C,T/T,Western Union,MoneyGram, 
  • Updatetime:Jan 30 2018 
Chengdu Qiyu Gas Co., Ltd.
  • Category:Corporation/Limited Liability Company
  • Registered Time:2010
  • Registered Capital:US$5 Million - US$10 Million
  • Legal Representative:Ke Sun
  • Employees:5 - 10 People
  • Tel:86-28-83579197
  • Fax:86-28-83579197
  • Address:Room 40, 5th Building, No. 517, North Honghe Road,
Main Products
Industrial gas, specialty gas, rare gas, gas mixture, calibration gas, sulfur hexafluoride, xenon, helium, argon, krypton, hydrogen, nitrogen, nitrous oxide, silane, methane
Contact Supplier
Krypton (Kr)
  • Cas No:7439-90-9 
  • Purity:99.999% 
  • Formula:Kr 
  • Payment:L/C,T/T, 
  • Einecs:231-098-5 
  • Description:99.999% krypton. Purity : 99.999% Guaranteed Specification: Oxygen ≤ 1ppmv Nitrogen ≤ 2pmv carbon Dioxide ≤ 0.5ppmv Carbon Monoxide
  • Updatetime:Dec 05 2016 
Foshan Huate Gases Co., Ltd
  • Category:Corporation/Limited Liability Company
  • Registered Time:1999
  • Registered Capital:US$50 Million - US$100 Million
  • Legal Representative:Mr. Pingxiang Shi
  • Employees:501 - 1000 People
  • Tel:0086-757-85126928
  • Fax:0086-757-85126928
  • Address:Jinfeng Road,Heshun,Lishui ,Nanhai
Main Products
CO,CO2,NO,N2O,CF4,C2F6,C3F8,C4F8,CH4,C2H4,C2H6,C3H6,C3H8,C4H10,SF6,SiH4,SiF4,Helium,Neon,Argon,Krypton,Xenon,NH3,H2S,BCL3,Deuterium(D2),CHF3,CH2F2,Chloride(Cl2)
Contact Supplier
Krypton
  • FOB Price:Inquiry USD/Gram 
  • Cas No:7439-90-9 
  • Min.Order:1/Gram 
  • Supply Ability:100 Day/Gram 
  • Formula:Kr 
  • Appearance:white or yellowish crystalline powder 
  • Updatetime:Mar 29 2016 
Boc Sciences
  • Registered Time:2005
  • Employees:101 - 500 People
  • Tel:1-631-5046093
  • Fax:1-631-6147828
  • Address:45-16 Ramsey Road, Shirley, NY 11967, USA
Main Products
building blocks, synthetic intermediates, custom synthesis
Contact Supplier
Krypton - ( Kr )
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Description:Specifications Purity , % 99.999
  • Updatetime:Sep 21 2015 
Hongkong wechem chemical co., Ltd
  • Category:LLC (Ltd Liability Corp)
  • Registered Time:2015
  • Registered Capital:US$101 Thousand - US$500 Thousand
  • Employees:11 - 50 People
  • Tel:852-0-30697507
  • Fax:852-0-30697502
  • Address:UNIT 04,7/F, Bright Way Tower, NO.33 Mongkok Road , Kowloon , HK .
Main Products
specialty gases , laser gas , medical gas , industrial gas , calibration gas
Contact Supplier
krypton gas, compressed, lighting gas
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Payment:T/T, 
  • Einecs:231-098-5 
  • Description:Rare gas 1 high purity rare gas 2 99.9-99.9999% 3.Helium-He,Neon-Ne,Krypton-Kr,Xenon-Xe 4.best quality Neon (Ne), Krypton (Kr) and Xenon (Xe) are found in the air in very low concentrations. ASG provides Rare Gases in various size cylinders and quantities. Sol...
  • Updatetime:Oct 31 2013 
Foshan Huate Gas Co.,Ltd
  • Category:Corporation/Limited Liability Company
  • Registered Time:1993
  • Registered Capital:US$1 Million - US$2.5 Million
  • Employees:Above 1000 People
  • Tel:86-757-85115270
  • Fax:86-757-85115270
  • Address:Jinfeng,Heshun,Lishui,Nanhai,Foshan,Guangdong
Main Products
electrical gases, medical gases,bulk gases, laser gases,ultra high purity gases,calibration gas,customer-oriented gases
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Appearance:ODOURLESS COLOURLESS, COMPRESSED LIQUEFIED GAS 
  • Einecs:231-098-5 
  • Description:Quick Details CAS No.: 7439-90-9 Melting Point: -157ºC Boiling Point: -153ºC Solubility: 221 mg/l Stability Stable and unreactive; not combustible. Toxicology Acts as an asphyxiant at high concentration. Toxicity data (The meaning of any toxicologica Appearanc...
  • Updatetime:Oct 13 2012 
South China Special Gas Institute Co., Ltd
  • Tel:+86-757-85126929
  • Fax:+86-757-85123424
  • Address:Jinfeng Road,Heshun, Lishui Town,Nanhai, Foshan, GuangDong P.R.China
Contact Supplier
KRYPTON
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Description:Analysis results: Kr 99.999% H2 ≤0.5ppm N2 &
  • Updatetime:Mar 20 2012 
Foshan Huate Gases Co., Ltd
  • Registered Time:1993
  • Employees:501 - 1000 People
  • Tel:86-757-85126929
  • Fax:86-757-85123424
  • Address:Jinfeng Road,Heshun, Lishui Town,Nanhai
Main Products
rare gas, industrial hydrocarbons, industrial special gas, refrigerant gas, medical gas, Pure Inorganic Gases, Pure Organic Gases, Liquid Gases, Shielding Gas Mixtures, Electric Bulb Gases, Laser Gas
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Dec 18 2010 
Wuhan Newradar Trade Company Limited
  • Tel:027-82653381
  • Fax:027-82629459
  • Address:Room 803, Chuangye Bulding #1, Jiangda Road, Jiangan District, Wuhan, Hubei, China
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Dec 18 2010 
Matheson Tri-Gas
  • Tel:215 641 2700
  • Address:Equipment Technology Center 166 Keystone Drive Montgomeryville, PA 18936
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Dec 18 2010 
shanghai hynote
  • Tel:+86 379 65867059
  • Fax:+86 379 65867057
  • Address:zhangyang Rd, shanghai
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Dec 18 2010 
Sulfur Properties and Compounds
  • Tel:(915) 675-5311
  • Address:USA
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
Shanghai Hynote Import & Export Co., Ltd.
  • Tel:+86-(379)-65867058
  • Fax:+86-(379)-65867057
  • Address:R. 906A, Tomson Center, 228 Zhangyang Rd., Pudong, Shanghai 200120,
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
The BOC Group
  • Tel:+65-6866 3100
  • Fax:+65-6866 3101
  • Address:501 Orchard Road #10-01 Wheelock Place 238880,
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
American Air Liquide
  • Tel:(713)-624-8000
  • Address:2700 Post Oak Blvd., Houston, Texas 77056,
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
Dakota Gasification Company
  • Tel:+1-(701)-221-4415
  • Fax:+1-(701)-221-4450
  • Address:1600 East Interstate Ave., (P.O. Box 5540), Bismarck, North Dakota 58506,
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
Promy International Group
  • Tel:+1-(888)-918-3888, 510-758-1388
  • Fax:+1-(510)-758-9388
  • Address:130 Travalini Court, El Sobrante, California 94803,
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
Advanced Specialty Gases
  • Tel:+1-(775)-356 5500
  • Fax:+1-(775)-356 5571
  • Address:135 Catron Dr., Reno, Nevada 89512,
Contact Supplier
Krypton
  • Cas No:7439-90-9 
  • Formula:Kr 
  • Einecs:231-098-5 
  • Updatetime:Nov 13 2010 
Air Products & Chemicals, Inc.
  • Tel:+1-(610)-481-4911
  • Fax:+1-(610)-48- 5900
  • Address:7201 Hamilton Blvd, Allentown, Pennsylvania 18195,
Contact Supplier
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