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129503-13-5

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129503-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129503-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,5,0 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129503-13:
(8*1)+(7*2)+(6*9)+(5*5)+(4*0)+(3*3)+(2*1)+(1*3)=115
115 % 10 = 5
So 129503-13-5 is a valid CAS Registry Number.

129503-13-5Downstream Products

129503-13-5Relevant articles and documents

Methyltriazolocoumarins: New furocoumarin isosters as potential photochemotherapeutic agents

Rodighiero,Chilin,Pastorini,Guiotto,Manzini

, p. 1153 - 1158 (2007/10/02)

A number of new methyltriazolocoumarins with a linear psoralen-like structure or an angular angelicin-like structure were synthetized. The syntheses were performed starting from the appropriate methylated 7-amino-coumarins which were nitrated, reduced and successively diazotized with concomitant cyclization to form the condensed triazolo ring. The new methyltriazolocoumarins show promising spectroscopic properties which are potentially predictive of their photochemical and photobiological behaviour.

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