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1173183-45-3

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1173183-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1173183-45-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,3,1,8 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1173183-45:
(9*1)+(8*1)+(7*7)+(6*3)+(5*1)+(4*8)+(3*3)+(2*4)+(1*5)=143
143 % 10 = 3
So 1173183-45-3 is a valid CAS Registry Number.

1173183-45-3Upstream product

1173183-45-3Downstream Products

1173183-45-3Relevant academic research and scientific papers

Synthesis of 5-deoxypterocarpens, pterocarpens, and coumestans by intramolecular Heck reaction

Sant'Ana, Danilo P.,Pinho, Vagner D.,Maior, Marta C.L.S.,Costa, Paulo R.R.

, p. 3753 - 3755 (2009)

Two 5-deoxypterocarpens, one pterocarpen, and one coumestan were prepared from deoxychromenes, chromenes, and ortho-iodophenols. The key step in the described synthetic approach is an intramolecular Heck reaction leading to the formation of the C-ring pre

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