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129303-63-5

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129303-63-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129303-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,0 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129303-63:
(8*1)+(7*2)+(6*9)+(5*3)+(4*0)+(3*3)+(2*6)+(1*3)=115
115 % 10 = 5
So 129303-63-5 is a valid CAS Registry Number.

129303-63-5Downstream Products

129303-63-5Relevant articles and documents

Sulphur-based Directed Benzylic Metallations: Lithiations of Alkylarenesulphonates

Alo, Babajide I.,Familoni, Oluwole B.,Marsais, Francis,Queguiner, Guy

, p. 1611 - 1614 (2007/10/02)

Benzylic anions (6) are obtained by regio-specific lithiations of ethyl 2-methylbenzenesulphonates.Evidence for the presence of the ethyl 2-lithiomethylbenzenesulphonates was obtained by efficient quenching studies with a range of electrophiles.Lithiations of the 2,4-dimethyl compound (9) gave the 2-lithiomethyl anion only, indicative of a predominant co-ordination mechanism in the lithiations.

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