50380-74-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50380-74-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,3,8 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 50380-74:
(7*5)+(6*0)+(5*3)+(4*8)+(3*0)+(2*7)+(1*4)=100
100 % 10 = 0
So 50380-74-0 is a valid CAS Registry Number.
InChI:InChI=1/C11H8N2O/c12-6-7-5-10(14)11(13)9-4-2-1-3-8(7)9/h1-5,14H,13H2
50380-74-0Relevant articles and documents
Photochromic compounds and methods for their use
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, (2008/06/13)
The present invention relates to photochromic compounds of spiro?indoline?2,3'!-naphthoxazine! structure, characterized in that they contain, in the 6' position, a group R6 chosen from the following groups: cyano and phenylsulfonyl linked via the sulfur atom to carbon 6', and methods of using such compounds.