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1231745-65-5

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1231745-65-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1231745-65-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,7,4 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1231745-65:
(9*1)+(8*2)+(7*3)+(6*1)+(5*7)+(4*4)+(3*5)+(2*6)+(1*5)=135
135 % 10 = 5
So 1231745-65-5 is a valid CAS Registry Number.

1231745-65-5Downstream Products

1231745-65-5Relevant articles and documents

One-pot synthesis of 3,5-disubstituted and polysubstituted phenols from acyclic precursors

Qian, Jinlong,Yi, Wenbin,Huang, Xin,Miao, Yongbo,Zhang, Junkai,Cai, Chun,Zhang, Wei

, p. 1090 - 1093 (2015)

A new strategy for the synthesis of 3,5-disubstituted phenols is established through one-pot Robinson annulation of α,β-unsaturated ketones with α-fluoro-β-ketoesters followed by in situ dehydrofluorination and tautomerization. This method has been extended to the synthesis of polysubstituted phenols and applied in the preparation of biologically active compounds.

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