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309933-96-8

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309933-96-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 309933-96-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,9,3 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 309933-96:
(8*3)+(7*0)+(6*9)+(5*9)+(4*3)+(3*3)+(2*9)+(1*6)=168
168 % 10 = 8
So 309933-96-8 is a valid CAS Registry Number.

309933-96-8Downstream Products

309933-96-8Relevant articles and documents

peri-Naphthylenediamines 32 *. Reactions of 4,5-bis(dimethylamino)-1-naphthyllithium and 4,5-bis(dimethylamino)-1-naphthylmagnesium bromide with electrophilic agents. New representatives of double naphthalene "proton sponges" with the structures of 1,1′-binaphthyl ketone and 1,1′-binaphthylmethanol

Ryabtsova,Pozharskii,Ozeryanskii,Vistorobskii

, p. 854 - 859 (2001)

The 4-deuterio, 4-methyl, 4-iodo, 4-methylthio, 4-trimethylsilyl, and 4-ethoxycarbonyl derivatives of 1,8-bis(dimethylamino)naphthalene ("proton sponge") and some related alcohols were prepared by the reactions of 4,5-bis(dimethylamino)-1-naphthyllithium or 4,5-bis(dimethylamino)-1-naphthylmagnesium bromide with the corresponding electrophilic reagents. New representatives of double "proton sponges" with the structures of 1,1′-binaphthyl ketone and 1,1′-binaphthylmethanol were synthesized. The pKa values of selected compounds in DMSO were measured by competitive protonation.

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