3ξ-(5-nitro-furan-2-yl)-2-phenyl-(3ac,4ac,7ac,8ac)-3,3a,4,4a,7,7a,8,8a-octahydro-2H-4r,8c-methano-indeno[5,6-d]isoxazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 21789-85-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,8 and 9 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 21789-85: (7*2)+(6*1)+(5*7)+(4*8)+(3*9)+(2*8)+(1*5)=135 135 % 10 = 5 So 21789-85-5 is a valid CAS Registry Number.