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121345-17-3

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121345-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121345-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,4 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121345-17:
(8*1)+(7*2)+(6*1)+(5*3)+(4*4)+(3*5)+(2*1)+(1*7)=83
83 % 10 = 3
So 121345-17-3 is a valid CAS Registry Number.

121345-17-3Downstream Products

121345-17-3Relevant articles and documents

Synthesis of 3-substituted 2-oxo-1,4-thiazines and evaluation of their protective effect against endotoxin shock in mouse

Yamazaki,Harada,Matsuzaki,Watanabe,Saito

, p. 1025 - 1028 (2007/10/02)

5-Methyl-2,3-dioxo-2H,4H-1,4-thiazine (7) was obtained by the oxidation of 5-methyl-2H-1,4-thiazin-3(4H)-one (5) with m-chloroperbenzoic acid in MeOH, followed by acid hydrolysis of the resulting 2,2-dimethoxy-1,4-thiazine (6). 3-Chloro-2-oxo-1,4-thiazine (10), which was obtained from 7 by heating with phosphorous oxychloride, reacted with various nucleophiles to give 3-substituted 2-oxo-1,4-thiazines (11a-y). Some of these 2-oxo-1,4-thiazines, 11a-b, e, o and r-s, showed a protective effect against endotoxin shock in D-galactosamine-sensitized mice.

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