3734-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3734-52-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,3 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3734-52:
(6*3)+(5*7)+(4*3)+(3*4)+(2*5)+(1*2)=89
89 % 10 = 9
So 3734-52-9 is a valid CAS Registry Number.
InChI:InChI=1/C15H21NO/c1-10-14-8-11-4-5-12(17)9-13(11)15(10,2)6-7-16(14)3/h4-5,9-10,14,17H,6-8H2,1-3H3/t10-,14+,15+/m0/s1
3734-52-9Relevant articles and documents
A Short synthesis of benzomorphane analgesics (±)-Metazocine and (±)-Phenazocine
Singh, Kamal Nain,Singh, Pushpinder,Sharma, Arvind Kumar,Singh, Paramjit,Kessar, Satinder V.
experimental part, p. 3716 - 3720 (2010/12/29)
A three step synthesis of (±)-metazocine and (±)-phenazocine starting with 3,4-lutidine is described. The key step involves Lewis acid promoted lithiation/electrophilic substitution reaction of N-alkyl-3,4-dimethyl- 1,2,5,6- tetrahydropyridine. Copyright