126291-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126291-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,2,9 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 126291-42:
(8*1)+(7*2)+(6*6)+(5*2)+(4*9)+(3*1)+(2*4)+(1*2)=117
117 % 10 = 7
So 126291-42-7 is a valid CAS Registry Number.
InChI:InChI=1/C19H22BrNO4/c1-19-8-7-10-11(14(19)5-6-16(19)22)3-4-12-13(10)9-15(21(23)24)18(25-2)17(12)20/h9-11,14H,3-8H2,1-2H3/t10-,11+,14-,19-/m0/s1
126291-42-7Relevant articles and documents
SYNTHESIS AND PHOTOCHEMICAL REACTIONS OF NITROESTROGENS: POSSIBLE PHOTOAFFINITY LABELS OF ZERO LENGTH
Marquet, Jorge,Cantos, Albert,Teixido, Monica,Moreno-Manas, Marcial
, p. 441 - 452 (2007/10/02)
The syntheses of 3,4-dimethoxy-1,3,5(1O)-estratrien-17-one and 4-bromo-3-methoxy-2-nitro-1,3,5(10)-estratrien-17-one are described and their photoreactions with amines and hydroxide ion studied.The possible usefulness of these new steroids as photoaffinity labels of zero length is discussed.