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949143-87-7

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949143-87-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 949143-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,9,1,4 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 949143-87:
(8*9)+(7*4)+(6*9)+(5*1)+(4*4)+(3*3)+(2*8)+(1*7)=207
207 % 10 = 7
So 949143-87-7 is a valid CAS Registry Number.

949143-87-7Relevant articles and documents

Synthesis and calming activity of 6H-2-amino-4-aryl-6- (4-β-D- allopyranosyloxyphenyl)-1,3-thiazine

Fu, Li,Ye, Ding,Li, Ying,Yin, Shufan

scheme or table, p. 169 - 172 (2010/10/20)

E-(4-β-D-Allopyranosyloxyphenyl)-1-(4-substituted phenyl)propenone derivatives (1a-g) have been synthesized by the Claisen-Schmidt condensation of helicid with 4-substituted acetophenone using 10% NaOH aqueous solution as a catalyst. 6H-2-Amino-4-aryl-6-(4-β-D-allopyranosyloxyphenyl)-1,3-thiazine (2a-g) were synthesized by the 1,4-Michael reaction of 1a-g with thiourea. The structures of all the new products were established by 1H NMR, IR, and MS spectroscopy. Compound 2b (200 mg.kg-1) showed better sedative-hypnotic activity, so further modification of helicid should be worthwhile.

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