89795-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89795-77-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,9 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89795-77:
(7*8)+(6*9)+(5*7)+(4*9)+(3*5)+(2*7)+(1*7)=217
217 % 10 = 7
So 89795-77-7 is a valid CAS Registry Number.
89795-77-7Relevant articles and documents
Synthesis method of foramsulfuron intermediate
-
Paragraph 0052-0054, (2021/01/04)
The invention discloses a synthesis method of a foramsulfuron intermediate, which comprises the following steps of: carrying out one-pot chlorination, alcoholysis and ammonolysis cyclization on 2-sulfo-4-nitrobenzoic acid used as a starting raw material t
