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1256155-48-2

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1256155-48-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256155-48-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,1,5 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1256155-48:
(9*1)+(8*2)+(7*5)+(6*6)+(5*1)+(4*5)+(3*5)+(2*4)+(1*8)=152
152 % 10 = 2
So 1256155-48-2 is a valid CAS Registry Number.

1256155-48-2Relevant academic research and scientific papers

Asymmetrie synthesis of fluorinated flavanone derivatives by an organocatalytic tandem intramolecular oxa-michael Addition/electrophilic fluorination reaction by using bifunctional cinchona alkaloids

Wang, Hai-Feng,Cui, Hai-Feng,Chai, Zhuo,Li, Peng,Zheng, Chang-Wu,Yang, Ying-Quan,Zhao, Gang

supporting information; experimental part, p. 13299-13303+13273 (2010/06/17)

"Chemical Equation Presented" A bifunetional quinidine derivative, containing a trifluoromethyl group, was found to catalyze a tandem intramolecular oxa-Michael addition/electrophilic fluorination reaction of acti-vated α,β-unsaturated ketones (see scheme). A series of chiral fluorinated flavanone derivatives were obtained in excellent yields and with high enantioselectivities.

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