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312689-52-4

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312689-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 312689-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,2,6,8 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 312689-52:
(8*3)+(7*1)+(6*2)+(5*6)+(4*8)+(3*9)+(2*5)+(1*2)=144
144 % 10 = 4
So 312689-52-4 is a valid CAS Registry Number.

312689-52-4Relevant academic research and scientific papers

INTERMEDIATE COMPOUND WHICH IS USED FOR THE PREPARATION OF PIOGLITAZONE

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Paragraph 2, (2008/06/13)

The present invention relates to a novel compound of formula (IV) which is an intermediate that can be used for the preparation of pioglitazone. It also relates to a method of obtaining the novel compound (IV) starting from the natural product L-tyrosine, in which the amino group is protected in the form of aromatic imino group, and a method of obtaining pioglitazone from the said intermediate.

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