177366-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177366-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,3,6 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177366-41:
(8*1)+(7*7)+(6*7)+(5*3)+(4*6)+(3*6)+(2*4)+(1*1)=165
165 % 10 = 5
So 177366-41-5 is a valid CAS Registry Number.
177366-41-5Relevant articles and documents
Total synthesis of phenoxan and a related pyrone derivative
Ishibashi, Yasuharu,Ohba, Shigeru,Nishiyama, Shigeru,Yamamura, Shosuke
, p. 2997 - 3000 (2007/10/03)
Phenoxan, HIV-1 inhibitor isolated from the myxobacteria, has been synthesized in 16 steps starting from ethyl 2-methylacetoacetate. The related isomer corresponding to the oxazole part was also obtained via an orthoester-enediol rearrangement.