82297-94-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82297-94-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,2,9 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82297-94:
(7*8)+(6*2)+(5*2)+(4*9)+(3*7)+(2*9)+(1*4)=157
157 % 10 = 7
So 82297-94-7 is a valid CAS Registry Number.
82297-94-7Relevant academic research and scientific papers
Synthesis of 2,7-Dihydroxyemodin
Malhotra, S.,Misra, K.
, p. 107 - 108 (2007/10/02)
2,7-Dihydroxyemodin (IX) has been synthesised by condensing 3,4,5-trihydroxyphthalic anhydride (VII) with 3-methylcatechol (III) in the presence of anhyd. aluminium chloride and subsequent cyclisation of the benzophenone derivative (VIII) with a mixture of boric and sulphuric acids.
