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1604875-80-0

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1604875-80-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1604875-80-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,4,8,7 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1604875-80:
(9*1)+(8*6)+(7*0)+(6*4)+(5*8)+(4*7)+(3*5)+(2*8)+(1*0)=180
180 % 10 = 0
So 1604875-80-0 is a valid CAS Registry Number.

1604875-80-0Relevant academic research and scientific papers

A homologation approach to the synthesis of difluorinated cycloalkynes

Sletten, Ellen M.,De Almeida, Gabriela,Bertozzi, Carolyn R.

, p. 1634 - 1637 (2014/04/17)

Difluorinated cyclooctynes are important reagents for labeling azido-biomolecules through copper-free click chemistry. Here, a safe, scalable synthesis of a difluorinated cyclooctyne is reported, which involves a key homologation/ring-expansion reaction. Sequential ring expansions were also employed to synthesize and study a novel difluorinated cyclononyne.

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