248948-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 248948-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,8,9,4 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 248948-40:
(8*2)+(7*4)+(6*8)+(5*9)+(4*4)+(3*8)+(2*4)+(1*0)=185
185 % 10 = 5
So 248948-40-5 is a valid CAS Registry Number.
248948-40-5Relevant articles and documents
Total Synthesis of (-)-FR901483
Snider, Barry B.,Lin, Hong
, p. 7778 - 7786 (1999)
The first synthesis of the immunosuppressant (-)-FR901483 (1) has been accomplished in 2% overall yield from O-methyltyrosine methyl ester (31) in 22 steps establishing the absolute stereochemistry of the natural product. A 1,3-dipolar cycloaddition of ni
