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121033-91-8

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121033-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121033-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,3 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121033-91:
(8*1)+(7*2)+(6*1)+(5*0)+(4*3)+(3*3)+(2*9)+(1*1)=68
68 % 10 = 8
So 121033-91-8 is a valid CAS Registry Number.

121033-91-8Relevant articles and documents

α,β-unsaturated sulfones by the wittig reaction of stable ylide with aldehydes under microwave irradiation

Fu, Cong,Xu, Caiding,Huang, Zhi-Zhen,Huang, Xian

, p. 587 - 589 (2007/10/03)

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Stereochemistry of the Conversion of γ-substituted (E)-Vinylsulfones to the Corresponding Allylsulfones. Determination of the Relative Degree of "Syn-Effect"

Inomata, Katsuhiko,Hirata, Takaki,Suhara, Hiroshi,Kinoshita, Hideki,Kotake, Hiroshi,Senda, Hitoshi

, p. 2009 - 2012 (2007/10/02)

The relative degree of "syn-effect" for the γ-substituted vinylsulfones in their conversion to the corresponding allylsulfones with 1,8-diazabicycloundec-7-ene (DBU) was determined by observing E/Z ratios of the resulting allylsulfones as follows:

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