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133181-66-5

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133181-66-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133181-66-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,8 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133181-66:
(8*1)+(7*3)+(6*3)+(5*1)+(4*8)+(3*1)+(2*6)+(1*6)=105
105 % 10 = 5
So 133181-66-5 is a valid CAS Registry Number.

133181-66-5Relevant articles and documents

Chiral ligands containing heteroatoms.7. An investigation on the stereochemistry of the ketone reductions by chiral diamines/tin hydride systems

Falorni,Giacomelli,Marchetti,Culeddu,Lardicci

, p. 287 - 298 (1991)

Reducing agents prepared from SnCl2, chiral diamines and diisobutyl aluminum hydride have been applied to the enantioselective reduction of alkyl phenyl and α-alkynyl ketones. The extent of the ee observed was dependent on the hydrolysis temper

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