33870-02-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33870-02-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,7 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 33870-02:
(7*3)+(6*3)+(5*8)+(4*7)+(3*0)+(2*0)+(1*2)=109
109 % 10 = 9
So 33870-02-9 is a valid CAS Registry Number.
33870-02-9Relevant articles and documents
KINETICS OF THE CYCLOTRIMERIZATION AND COCYCLOTRIMERIZATION OF ISOCYANATES CATALYZED WITH ALKALI METALS ALKOXIDES
Bukac, Zbynek,Nechaiev, Alexandr,Sebenda, Jan
, p. 2219 - 2226 (2007/10/02)
For the rate of cyclotrimerization vt of phenyl isocyanate (I) in tetrahydrofuran catalyzed with Li, Na or K tert-butoxides (A) at 30 deg C, the coefficients k, a, b of the empirical relation vt = kab
