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allyl 2-O-allyl-4,6-O-benzylidene-α-D-mannopyranoside is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81555-81-9

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81555-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81555-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,5 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81555-81:
(7*8)+(6*1)+(5*5)+(4*5)+(3*5)+(2*8)+(1*1)=139
139 % 10 = 9
So 81555-81-9 is a valid CAS Registry Number.

81555-81-9Relevant academic research and scientific papers

Exciton chirality method in vibrational circular dichroism

Taniguchi, Tohru,Monde, Kenji

, p. 3695 - 3698 (2012/04/11)

The interaction of two IR chromophores yields a strong vibrational circular dichroism couplet whose sign reflects the absolute configuration of the molecule. We present a method to determine absolute configuration of a chiral molecule based on this couplet without need of theoretical calculation. Not only can this method analyze various molecules whose absolute configuration is difficult to determine by other spectroscopic methods, but also it can significantly enhance VCD signals.

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