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1258548-56-9

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1258548-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258548-56-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,5,4 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1258548-56:
(9*1)+(8*2)+(7*5)+(6*8)+(5*5)+(4*4)+(3*8)+(2*5)+(1*6)=189
189 % 10 = 9
So 1258548-56-9 is a valid CAS Registry Number.

1258548-56-9Downstream Products

1258548-56-9Relevant articles and documents

Chiral primary amine thiourea promoted highly enantioselective Michael reactions of isobutylaldehyde with maleimides

Bai, Jian-Fei,Peng, Lin,Wang, Liang-Liang,Wang, Li-Xin,Xu, Xiao-Ying

, p. 8928 - 8932 (2010)

Chiral primary amine thiourea catalysts were first successfully applied to promote Michael addition of isobutyraldehyde to maleimides. A variety of N-aryl and N-aliphatic maleimides provided Michael adducts in excellent yields (up to 98%) and enantioselectivities (up to 99% ee) with 5 mol % catalyst.

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