838-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 838-11-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,3 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 838-11:
(5*8)+(4*3)+(3*8)+(2*1)+(1*1)=79
79 % 10 = 9
So 838-11-9 is a valid CAS Registry Number.
838-11-9Relevant academic research and scientific papers
A CONVENIENT SYNTHESIS OF NATURALLY OCCURING XANTHONES
Patel, G. N.,Trivedi, K. N.
, p. 1641 - 1648 (2007/10/02)
Six naturally occuring xanthones are synthesized by the thermal condensation of methyl 2,6-dihydroxybenzoate, methyl 2,4-dihydroxybenzoate and methyl 2,4,6-trihydroxybenzoate with hydroquinone, catechol and pyrogallol.
