93803-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93803-67-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 93803-67:
(7*9)+(6*3)+(5*8)+(4*0)+(3*3)+(2*6)+(1*7)=149
149 % 10 = 9
So 93803-67-9 is a valid CAS Registry Number.
InChI:InChI=1/C11H17NO3/c1-14-7-8-15-6-5-12-10-3-2-4-11(13)9-10/h2-4,9,12-13H,5-8H2,1H3
93803-67-9Relevant academic research and scientific papers
Water-soluble near-infrared monothio-squaric acid dye as well as preparation method and application thereof
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Paragraph 0029, (2017/08/29)
The invention discloses water-soluble near-infrared monothio-squaric acid dye as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing oxo-squaric acid dye and a Lawesson's reagent; dissolvi
