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(3R)-5-chloro-8-methoxy-3-methyl-3,4-dihydro-1H-isochromen-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1421840-10-9

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1421840-10-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421840-10-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,8,4 and 0 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1421840-10:
(9*1)+(8*4)+(7*2)+(6*1)+(5*8)+(4*4)+(3*0)+(2*1)+(1*0)=119
119 % 10 = 9
So 1421840-10-9 is a valid CAS Registry Number.

1421840-10-9Upstream product

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