66767-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66767-73-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,7,6 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66767-73:
(7*6)+(6*6)+(5*7)+(4*6)+(3*7)+(2*7)+(1*3)=175
175 % 10 = 5
So 66767-73-5 is a valid CAS Registry Number.
66767-73-5Relevant academic research and scientific papers
Process for preparation of 3-hydroxymethylcephems
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, (2008/06/13)
3-Hydroxymethyl-2-cephems are provided by (1) reacting a 2-halomethylcephem compound with a γ-hydroxycarboxylic acid salt or a δ-hydroxycarboxylic acid salt and (2) reacting the novel γ or δ-hydroxy esters thereby obtained with a protic acid. The 3-hydrox
