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129816-31-5

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129816-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129816-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,1 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129816-31:
(8*1)+(7*2)+(6*9)+(5*8)+(4*1)+(3*6)+(2*3)+(1*1)=145
145 % 10 = 5
So 129816-31-5 is a valid CAS Registry Number.

129816-31-5Relevant articles and documents

Constitutions of forsythosides F and G, new phenol glycosides of Forsythia viridissima stems

Endo, Katsuya,Takahashi, Kazuhiro

, p. 291 - 294 (1990)

Two new phenol glycosides forsythoside F (1) and forsythoside G (2) have been isolated from Forsythia viridissima stems and their structures were established based on the spectroscopic data and chemical transformations.D-2-O-methylapiose was for the first time characterized in the natural product.

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