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68234-97-9

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68234-97-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68234-97-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,3 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 68234-97:
(7*6)+(6*8)+(5*2)+(4*3)+(3*4)+(2*9)+(1*7)=149
149 % 10 = 9
So 68234-97-9 is a valid CAS Registry Number.

68234-97-9Downstream Products

68234-97-9Relevant articles and documents

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Reetz,M.T.,Schwellnus,K.

, p. 1455 - 1458 (1978)

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Lewis Acid-mediated α-tert-Alkylation of Carboxylic Acids and Carboxylic Esters

Reetz, Manfred T.,Schwellnus, Konrad,Huebner, Friedhelm,Massa, Werner,Schmidt, Roland E.

, p. 3708 - 3724 (2007/10/02)

Carboxylic acids and carboxylic esters can be α-tert-alkylated via the corresponding ketene silyl acetals 2 and 4 using tertiary alkyl halides or acetates in the presence of ZnCl2.The method is successful even if the products are sterically strained due t

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