90524-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90524-73-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,5,2 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90524-73:
(7*9)+(6*0)+(5*5)+(4*2)+(3*4)+(2*7)+(1*3)=125
125 % 10 = 5
So 90524-73-5 is a valid CAS Registry Number.
90524-73-5Relevant articles and documents
Synthesis of Pyrazofurin and its Analogues
Karagiri, Nobuya,Takashima, Kenichi,Haneda, Toru,Kato, Tetsuzo
, p. 553 - 560 (2007/10/02)
Pyrazofurin and its analogues have been synthesized fron ribosyl β-keto acid derivatives, which can be readily prepared by Wittig reaction of the protected D-ribose with phosphoranes.Reaction of 2,3-O-isopropylidene-5-O-trityl-α- and β-D-ribose (6) with 3
