82938-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82938-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,3 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82938-21:
(7*8)+(6*2)+(5*9)+(4*3)+(3*8)+(2*2)+(1*1)=154
154 % 10 = 4
So 82938-21-4 is a valid CAS Registry Number.
82938-21-4Relevant articles and documents
Synthesis of 13-Aza-3-methoxy-18-nor-5,6-seco-estrone and Its 7-Methyl Analogue
Trehan, I. R.,Vig, Manju,Bala, Kiran
, p. 200 - 203 (2007/10/02)
Horner-Wittig reaction of p-methoxybutyrophenone (I) with triethyl phosphonoacetate provides ethyl p-methoxyphenylhex-2-enoate (II) as a 1:1 mixture of cis- and trans-isomers.II on reduction with LAH gives the allylic alcohol (III).Condensation of III wit
