23902-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23902-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,0 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23902-69:
(7*2)+(6*3)+(5*9)+(4*0)+(3*2)+(2*6)+(1*9)=104
104 % 10 = 4
So 23902-69-4 is a valid CAS Registry Number.
InChI:InChI=1/C5H6N2O2/c1-9-5-4-7(8)3-2-6-5/h2-4H,1H3
23902-69-4Relevant articles and documents
ARYL-ALKYNE COMPOUNDS AS HERBICIDES
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Page/Page column 38-39, (2010/02/07)
Compounds of formula (I) wherein Q is a group formula (II), (III); Z is=N-, formula (IV) or =C(R2)-; n is 0, 1, 2 or 3; R3 or R4 are each independently of the other hydrogen, alogen, -CN, C1-C4alkyl o