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134521-61-2

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134521-61-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134521-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,5,2 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134521-61:
(8*1)+(7*3)+(6*4)+(5*5)+(4*2)+(3*1)+(2*6)+(1*1)=102
102 % 10 = 2
So 134521-61-2 is a valid CAS Registry Number.

134521-61-2Downstream Products

134521-61-2Relevant articles and documents

PHOTOOXYGENATION OF PTERIDIN-2,4,7-TRIONES

Nishio, Takehiko,Nishiyama, Tadashi,Omote, Yoshimori

, p. 2979 - 2990 (2007/10/02)

The pteridin-2,4,7-trione 6,8'-endoperoxides are synthesized and their thermal reactions are examined.The pteridin-2,4,7-triones (1) reacted smoothly with singlet oxygen to yield the pteridin-2,4,7-trione 6,8'-endoperoxides (2-5).On warming the endoperoxide (2a) reverted to the starting pteridin-2,4,7-trione (1a) with liberation of singlet oxygen, which was confirmed by trapping experiment using typical singlet oxygen acceptors (7-12).

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