5528-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5528-26-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,2 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 5528-26:
(6*5)+(5*5)+(4*2)+(3*8)+(2*2)+(1*6)=97
97 % 10 = 7
So 5528-26-7 is a valid CAS Registry Number.
5528-26-7Relevant academic research and scientific papers
Synthesis of 7-aryl-1H,9H-pyranobenzoxazin-2,9-(3H)-diones
Chander, V. Surya,Rao, C. Papa,Sudhakar, C.,Mohan, K. Raja
, p. 377 - 378 (2007/10/02)
A series of new 7-aryl-1H,9H-pyranobenzoxazin-2,9-(3H)-diones (Va-f) has been synthesised and a convenient methos for the synthesis of 6-acetyl-7-hydroxy-2H-1,4-benzoxazin-3-one (III) is described.