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121905-31-5

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121905-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121905-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,0 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121905-31:
(8*1)+(7*2)+(6*1)+(5*9)+(4*0)+(3*5)+(2*3)+(1*1)=95
95 % 10 = 5
So 121905-31-5 is a valid CAS Registry Number.

121905-31-5Downstream Products

121905-31-5Relevant articles and documents

"STRUCTURE-REACTIVITY-SELECTIVITY" RELATIONSHIP IN SN2 PROCESSES. REACTION OF 4,4'-SUBSTITUTED α-CHLORODEOXYBENZOINS WITH SODIUM THIOPHENOLATES

Karavan, V. S.,Simonov, D. A.

, p. 145 - 148 (2007/10/02)

In the SN2 reactions of α-chlorodeoxybenzoins X'C6H4CHClCOC6H4X with YC6H4SNa in methanol there is no unambiguous relationship at all between the reactivity of the substrate and its selectivity toward the nucleophile (ρY).At the same

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