1330778-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1330778-81-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,0,7,7 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1330778-81:
(9*1)+(8*3)+(7*3)+(6*0)+(5*7)+(4*7)+(3*8)+(2*8)+(1*1)=158
158 % 10 = 8
So 1330778-81-8 is a valid CAS Registry Number.
1330778-81-8Relevant articles and documents
Novel synthesis of thioalkoxy-substituted OXA[9]helicenes by the reaction of helical quinones with thiols
Salim, Mohammad,Kimura, Takao,Karikomi, Michinori
, p. 547 - 550 (2013)
The reaction of helical quinone with thiols in the presence of acid such as HCl, para-toluene sulfonic acid (pTSA), or Yb(OTf)3·3H 2O to form resulted in the formation of thioalkoxy-substituted oxa[9]helicenes in moderate to good yie
