133901-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133901-92-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,0 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133901-92:
(8*1)+(7*3)+(6*3)+(5*9)+(4*0)+(3*1)+(2*9)+(1*2)=115
115 % 10 = 5
So 133901-92-5 is a valid CAS Registry Number.
133901-92-5Relevant academic research and scientific papers
Photoinduced Intramolecular Cyclization Reaction of 2-(2-Alkenoyl)-3-isopropylthio-1,4-benzoquinones to Heterocyclic Compounds
Iwamoto, Hidetoshi,Takuwa, Akio
, p. 724 - 726 (2007/10/02)
Irradiation of 2-acryloyl- and 2-(1-cycloalkenylcarbonyl)-3-isopropylthio-1,4-benzoquinones in benzene gave tricyclic and tetracyclic compounds in good yields, respectively.
