221552-14-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221552-14-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,5,5 and 2 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 221552-14:
(8*2)+(7*2)+(6*1)+(5*5)+(4*5)+(3*2)+(2*1)+(1*4)=93
93 % 10 = 3
So 221552-14-3 is a valid CAS Registry Number.
221552-14-3Relevant articles and documents
The first total synthesis of pyralomicin 2c
Tatsuta,Takahashi,Tanaka
, p. 1929 - 1932 (2007/10/03)
Pyralomicin 2c (2) has been synthesized by N-glucosylation of the aglycone 16, which was prepared from the appropriately substituted pyrrole and benzoyl chloride (5 and 9).
