1334552-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1334552-80-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,4,5,5 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1334552-80:
(9*1)+(8*3)+(7*3)+(6*4)+(5*5)+(4*5)+(3*2)+(2*8)+(1*0)=145
145 % 10 = 5
So 1334552-80-5 is a valid CAS Registry Number.
1334552-80-5Relevant articles and documents
PROCESS FOR THE PREPARATION OF HIGHLY PURE AMBRISENTAN
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Paragraph 0059; 0060, (2013/03/26)
The present invention relates to an improved and novel process for the preparation of highly pure (>99.8%) (+)-2(S)-(4,6-dimethylpyrimidin-2-yloxy)-3-methoxy-3,3-diphenylpropionic acid (Ambrisentan) of formula (I).
