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756-90-1

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756-90-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 756-90-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,5 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 756-90:
(5*7)+(4*5)+(3*6)+(2*9)+(1*0)=91
91 % 10 = 1
So 756-90-1 is a valid CAS Registry Number.

756-90-1Downstream Products

756-90-1Relevant articles and documents

Sulfur(VI)-oxide-chloride-imides and Sulfur(VI)-oxide-fluoride-imides

Mews, Ruediger,Kricke, Peter,Stahl, Ingo

, p. 1093 - 1098 (2007/10/02)

At room temperature in the presence of CsF sulfur-oxide-chloride-fluoride-imides RfNSOFCl (8) (Rf = CF3, C2F5, i-C3F7, C6F5) are formed from N-perfluoroalkyl-sulfinyl-imides and Cl2.At prolonged reaction times or higher temperatures the chloride is exchanged and the difluorides RfNSOF2 are isolated in high yields.In the same way (CF3)2CFNS(O)ClCF3 (12) and (CF3)2CClNS(O)ClCF3 (13) are obtained from (CF3)2C=N-S(O)CF3 (9) and Cl2/CsF. 12 can be fluorinated by CsF to give (CF3)2CFNS(O)FCF3 (14). 14 is also observed, when fluorine is added to 9 via XeF2 in the presence of BF3, but mainly C-S bond cleavage occurs.SF5NS(O)FCF(CF3)2 (19) was identified by spectroscopic methods from the reaction of SF5NSOF2 and CF3CF=CF2 in the presence of CsF. - Keywords: Sulfinyl-imides, Sulfur-oxide-chloride-fluoride-imides

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