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1132755-70-4

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1132755-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1132755-70-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,2,7,5 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1132755-70:
(9*1)+(8*1)+(7*3)+(6*2)+(5*7)+(4*5)+(3*5)+(2*7)+(1*0)=134
134 % 10 = 4
So 1132755-70-4 is a valid CAS Registry Number.

1132755-70-4Upstream product

1132755-70-4Downstream Products

1132755-70-4Relevant articles and documents

Enantioselective synthesis of chromanes by iridium-catalyzed asymmetric hydrogenation of 4H-chromenes

Valla, Carine,Baeza, Alejandro,Menges, Frederik,Pfaltz, Andreas

scheme or table, p. 3167 - 3171 (2009/06/17)

Iridium complexes of chiral oxazoline-based P,N-ligands proved to be efficient catalysts for the enantioselective hydrogenation of 2-aryl- and 2-alkyl-4H-chromenes. The best results were obtained with a ligand derived from threonine (ThrePHOX), which induced ee values of 95% to >99% in the hydrogenation of 2-methyl-, 2-cyclohexyl- and various 2-aryl-substituted chromenes. Georg Thieme Verlag Stuttgart.

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