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1260217-83-1

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1260217-83-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260217-83-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,2,1 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1260217-83:
(9*1)+(8*2)+(7*6)+(6*0)+(5*2)+(4*1)+(3*7)+(2*8)+(1*3)=121
121 % 10 = 1
So 1260217-83-1 is a valid CAS Registry Number.

1260217-83-1Relevant articles and documents

Synthesis of green colored photochromic 6'-arylamino spiro [2H]naphth[1,2-b]oxazines

York, Mark,Evans, Richard A.

experimental part, p. 3618 - 3628 (2011/02/16)

The published route to a series of 6'-arylamino substituted photochromic spirooxazines has been investigated with improvements made to perform the synthesis in satisfactory yield. The route has been exemplified with several novel derivatives prepared (including hydroxyl functionalised). Additionally, a one-pot procedure for the conversion of suitably functionalized 1,2-naphthoquinones into the photochromic compounds is reported. Copyright

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