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1197374-09-6

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1197374-09-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1197374-09-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,7,3,7 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1197374-09:
(9*1)+(8*1)+(7*9)+(6*7)+(5*3)+(4*7)+(3*4)+(2*0)+(1*9)=186
186 % 10 = 6
So 1197374-09-6 is a valid CAS Registry Number.

1197374-09-6Downstream Products

1197374-09-6Relevant articles and documents

Identification, synthesis and characterization of impurities of Montelukast sodium

Sunil Kumar,Anjaneyulu,Hima Bindu

, p. 4536 - 4546 (2012/02/04)

Montelukast sodium is a selective leukotriene receptor antagonist which inhibits cysteinyl leukotriene CysLT1 receptor. Various synthesis of Montelukast is published. During laboratory optimization and later in bulk synthesis formation of various impurities was detected. Besides, pharma Europa draft mention nine process related impurities. However, the method of preparation of most of these impurities is not available in literature. Also, different route of synthesis will have different impurity profile and those process related impurities are not covered in pharmacopeias. In this study we report the synthesis of possible process impurities, including seven impurities (A-H) mentioned in pharma Europa.

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