78497-52-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78497-52-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,9 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78497-52:
(7*7)+(6*8)+(5*4)+(4*9)+(3*7)+(2*5)+(1*2)=186
186 % 10 = 6
So 78497-52-6 is a valid CAS Registry Number.
InChI:InChI=1/C21H20N2O6/c1-13-12-23(21(26)22-20(13)25)8-3-2-4-9-27-19-17-15(7-10-28-17)11-14-5-6-16(24)29-18(14)19/h5-7,10-12H,2-4,8-9H2,1H3,(H,22,25,26)
78497-52-6Relevant articles and documents
Solid state photodimerization of psoralen derivatives
Courseille, Christian,Hospital, Michel,Decout, Jean-Luc,Lhomme, Jean
, p. 5031 - 5034 (1990)
Stereo selective reversible photodimerization of 8-alkoxypsoralen 1-thymine derivatives occurs in the solid state with topochemical control, the reactive pyrone double bonds of the monomers being favourably oriented in the crystal to produce only the exo head-to-tail dimer.