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37469-58-2

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37469-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37469-58-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,4,6 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 37469-58:
(7*3)+(6*7)+(5*4)+(4*6)+(3*9)+(2*5)+(1*8)=152
152 % 10 = 2
So 37469-58-2 is a valid CAS Registry Number.

37469-58-2Downstream Products

37469-58-2Relevant articles and documents

Formation of Dihydrotriphenodioxazines and Dihydroisotriphenodioxazines by Acidic Treatment of Some Substituted 3H-Phenoxazin-3-ones: Isolation and Characterization. A New Perspective in the Chemistry of Ommochromes

Bolognese, Adele,Piscitelli, Carlo,Scherillo, Giulia

, p. 3649 - 3652 (2007/10/02)

Cleavage of the substituted 3H-phenoxazin-3-one system is observed in acidic medium.Isolation and characterization of 1,9-dicarbomethoxy-2-hydroxy-3H-phenoxazin-3-one (5a) and 1,8,13-tricarbomethoxy-7,14-dihydrotriphenodioxazine (6a), of 1,9-diacetyl-2-hydroxy-3H-phenoxazin-3-one (5b) and 1,8,13-triacetyl-7,14-dihydrotriphenodioxazine (6b), of 2,7-dicarbomethoxy-4-hydroxy-3H-phenoxazin-3-one (5c) and 3,8,13-tricarbomethoxy-7,14-dihydroisotriphenodioxazine (6c), and of 2,7-diacetyl-4-hydroxy-3H-phenoxazin-3-one (5d) and 3,8,13-triacetyl-7,14-dihydroisotriphenodioxazine (6d) from the treatment in methanol-0.2 N H2SO4 of 1,9-dicarbomethoxy-2-amino-3H-phenoxazin-3-one (4a), 1,9-diacetyl-2-amino-3H-phenoxazin-3-one (4b), 2,7-dicarbomethoxy-4-amino-3H-phenoxazin-3-one (4c), and 2,7-diacetyl-4-amino-3H-phenoxazin-3-one (4d), respectively, are reported.A probable mechanism for the formation of the reaction products is presented.

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