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90481-73-5

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90481-73-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90481-73-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,8 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90481-73:
(7*9)+(6*0)+(5*4)+(4*8)+(3*1)+(2*7)+(1*3)=135
135 % 10 = 5
So 90481-73-5 is a valid CAS Registry Number.

90481-73-5Downstream Products

90481-73-5Relevant articles and documents

Application of a One-Pot Friedel–Crafts Alkylation/Michael Addition Methodology to the Asymmetric Synthesis of Ergoline Derivatives

Despotopoulou, Christina,McKeon, Sean C.,Connon, Robert,Coeffard, Vincent,Müller-Bunz, Helge,Guiry, Patrick J.

, p. 6734 - 6738 (2017)

Herein, we report a short and facile stereoselective route to ergoline derivatives. The key steps are a one-pot Friedel–Crafts alkylation/Michael addition sequence which, in the absence of chiral ligands, affords the trans-trans-stereoisomer in 44 % yield

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