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134936-51-9

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134936-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134936-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,3 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134936-51:
(8*1)+(7*3)+(6*4)+(5*9)+(4*3)+(3*6)+(2*5)+(1*1)=139
139 % 10 = 9
So 134936-51-9 is a valid CAS Registry Number.

134936-51-9Downstream Products

134936-51-9Relevant articles and documents

Alkylation of methyl dihydrofurancarboxylates

Kinoshita,Hirano,Yoshida

, p. 384 - 386 (1991)

Methyl 3-alkyl-2,3-dihydro-3-furancarboxylates were prepared by the alkylation of methyl 2,3-dihydro-3-furancarboxylate using lithium diisopropylamide as the base, and alkyl halides, acetone or benzaldehyde as the alkylating agent. Likewise alkylation of methyl 2,5-dihydro-2-furancarboxylate gave the corresponding 2-alkylated products.

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