1916-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1916-55-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,1 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1916-55:
(6*1)+(5*9)+(4*1)+(3*6)+(2*5)+(1*5)=88
88 % 10 = 8
So 1916-55-8 is a valid CAS Registry Number.
InChI:InChI=1/C14H10N2O3/c1-8(17)15-10-6-11-14(7-12(10)18)19-13-5-3-2-4-9(13)16-11/h2-7H,1H3,(H,15,17)
1916-55-8Relevant articles and documents
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Osman,A.-M.,Bassiouni,I.
, p. 1607 - 1609 (1960)
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Reaction of o-Aminophenol and p-Benzoquinone in Acetic Acid
Bolognese, Adele,Scherillo, Giulia,Schaefer, Wolfram
, p. 1003 - 1006 (2007/10/02)
The reaction of o-aminophenol and p-benzoquinone in acetic acid yields phenoxazinones 1, 5 and 6, phenoxazine 7, triphenodioxazine 2, ditriphenodioxazine 3 and the phenoxazinonyltriphenodioxazine 4.