2, 3-Difluoro-5-chloropyridine Molecular Formula C5H2ClF2N Molecular Formula C5H2ClF2N Molecular Weight 149.53 CAS Registry Number 89402-43-7 Purity 95%

 °  ² à �  ¢ à � à £ à ‹  «  ¼ à — à ƒ à ‘ PHOTOCURE-651 Name 2, 2-Dimethoxy-2-phenylacetophenone Synonyms Benzil alpha, alpha-dimethyl acetal Molecular Formula C16H16O3 Molecular Weight....

Dithiodiisopropyl xanthate Molecular Formula C8H14O2S 4 Purity 96% Melting point 52- 56 MSN chemscu@ hotmail.com E- Mail scienceonline@ 163.com http: / / chemscu.en.ecplaza.net

Molecular Formula C20H16N2O4 Molecular Weight 348.36 CAS Registry Number 7689-03-4 Melting point 260Â ¡ Ã £ C Fax 86-28-85356300 Telephone 86-( 0) 13568934485 MSN chemscu@ hotmail....

4, 4' - bis( 4- aminophenoxy) diphenylsulfone Purity: 99.9% CAS: 13080- 89- 2 Molecul ar Formula? ? C24H20N2O4S Molecular Weight? ? 432.49 Melting point? ? 194.5? ? 196.5 Fax 86-....

? ? ? ? ? ? Carbohydrazide Synonyms cardonic dihydrazide 1, 3- diaminourra 4- aminosemicarbazide CAS 497- 18- 7 Molecular weight: 90.08 Properties: white column- like crystal, ....