129780-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129780-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,8 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129780-43:
(8*1)+(7*2)+(6*9)+(5*7)+(4*8)+(3*0)+(2*4)+(1*3)=154
154 % 10 = 4
So 129780-43-4 is a valid CAS Registry Number.
129780-43-4Relevant academic research and scientific papers
Synthesis of (+/-)-Sytivanone and (+/-)-Dihydrodaidzein
Jain, Amolak C.,Nayyar, Naresh K.
, p. 136 - 139 (2007/10/02)
The title plant products (5a and 5d) have been synthesised from the corresponding desoxybenzoins (1a and 1d) in nearly 50percent yields in three steps, viz. (i) reaction with ethoxymethyl chloride, (ii) cyclisation of the resulting carbinols (3a and 3b),
