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134175-90-9

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134175-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134175-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,1,7 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134175-90:
(8*1)+(7*3)+(6*4)+(5*1)+(4*7)+(3*5)+(2*9)+(1*0)=119
119 % 10 = 9
So 134175-90-9 is a valid CAS Registry Number.

134175-90-9Downstream Products

134175-90-9Relevant articles and documents

Chiral Organometallic Reagents, IV Stereoselective Formation of β-Silyloxy-α-bromoalkyllithium Compounds

Hoffmann, Reinhard W.,Julius, Manfred

, p. 811 - 822 (2007/10/02)

The diastereomeric carbenoids 4 have been generated by diastereoselective (84:16) exchange of the diastereotopic bromine atoms in the dibromo compound 3 for lithium at -120 deg C.The implication of the observed diastereoselectivity for the Nozaki ring-expansion method is discussedKey words: Carbenoids / Halogen-metal exchange / Diastereotopic groups

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