209268-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209268-25-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,2,6 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 209268-25:
(8*2)+(7*0)+(6*9)+(5*2)+(4*6)+(3*8)+(2*2)+(1*5)=137
137 % 10 = 7
So 209268-25-7 is a valid CAS Registry Number.
209268-25-7Relevant articles and documents
Process for preparing 5-hydroxybenzo [b] thiophene-3-carboxylic acid derivatives
-
Page column 17, (2010/02/04)
Processes for producing compounds of the formula (VI) are disclosed. Benzothiophenecarboxylic acid derivatives of the formula (I), which are useful as starting materials for producing drugs, are disclosed. Particularly, disclosed is a process for preparin
