221187-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221187-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,1,8 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 221187-42:
(8*2)+(7*2)+(6*1)+(5*1)+(4*8)+(3*7)+(2*4)+(1*2)=104
104 % 10 = 4
So 221187-42-4 is a valid CAS Registry Number.
221187-42-4Relevant articles and documents
Amination of energetic anions: High-performing energetic materials
Klapoetke, Thomas M.,Piercey, Davin G.,Stierstorfer, Joerg
, p. 9451 - 9459 (2012)
The new energetic materials 2-amino-5-nitrotetrazole (ANT, 1), 1-amino-3,4-dinitro-1,2,4-triazole (ADNT, 2), and both 1,1′-diamino-5, 5′-bistetrazole and 1,2′-diamino-5,5′-bistetrazole (11DABT, 3 and 12DABT, 4) have been prepared by the amination of the p
