774538-96-4 Usage
Description
cis-Montelukast, also known as Montelukast EP Impurity G, Montelukast USP Related Compound G, or Montelukast cis Isomer, is a cis geometric isomer of Montelukast. It is characterized by its yellow solid appearance and is considered an impurity of Montelukast.
Uses
Used in Pharmaceutical Industry:
cis-Montelukast is used as an impurity in the production of Montelukast, a medication used for treating asthma and allergic rhinitis. Its presence in the final product is controlled to ensure the safety and efficacy of the drug. As an impurity, cis-Montelukast is essential for quality control and regulatory compliance in the pharmaceutical manufacturing process.
Check Digit Verification of cas no
The CAS Registry Mumber 774538-96-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,4,5,3 and 8 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 774538-96:
(8*7)+(7*7)+(6*4)+(5*5)+(4*3)+(3*8)+(2*9)+(1*6)=214
214 % 10 = 4
So 774538-96-4 is a valid CAS Registry Number.
774538-96-4Relevant articles and documents
SPECIFIC IMPURITIES OF MONTELUKAST
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Page/Page column 22-23, (2009/10/22)
The subject-matter of the invention consists in a method of removing specific impurities of montelukast of formula (I), which occur due to chemical instability of the target substance and also contaminate the substance in the preparation process. Further, methods of isolation of specific impurities of montelukast defined by formulae (V-A), (IV-A), (XIIIa-A), (XIIIb-A) and analytic methods used for the control of the production of montelukast in the pharmaceutical quality.