1613221-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1613221-18-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,2,2 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1613221-18:
(9*1)+(8*6)+(7*1)+(6*3)+(5*2)+(4*2)+(3*1)+(2*1)+(1*8)=113
113 % 10 = 3
So 1613221-18-3 is a valid CAS Registry Number.
1613221-18-3Relevant academic research and scientific papers
Total synthesis of herbimycin A
Yan, Rui,Bian, Chuancai,Yu, Xiaoming
supporting information, p. 3280 - 3283 (2014/07/08)
Benzoquinone ansamycin antibiotic herbimycin A was synthesized in 19 linear steps and 4.2% yield. Highlighted is the design of a chiral γ-lactone as the C11-C15 synthon that enabled a facile catalytic asymmetric synthesis of the challenging C8-C20 fragmen
