137853-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137853-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,5 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137853-39:
(8*1)+(7*3)+(6*7)+(5*8)+(4*5)+(3*3)+(2*3)+(1*9)=155
155 % 10 = 5
So 137853-39-5 is a valid CAS Registry Number.
137853-39-5Relevant articles and documents
A convergent synthesis of sarcophytol-A precursor 3, 7, 11, 15-tetramethyl-13-benzoxyl-14-oxo-2(E), 6(E), 10(E)-hexadecatrienal
Mao,Li,Li,Li,Liang,Wang
, p. 1419 - 1424 (2007/10/02)
Sarcophytol-A precursor (10) has been convergently synthesized by a route, which employed double bond migration reaction (d) and phase transfer catalytic (PTC) coupling reaction (e) as the key steps.
