99239-15-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99239-15-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,3 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99239-15:
(7*9)+(6*9)+(5*2)+(4*3)+(3*9)+(2*1)+(1*5)=173
173 % 10 = 3
So 99239-15-3 is a valid CAS Registry Number.
InChI:InChI=1/C24H30N2O6/c1-17(25-23(27)30-15-18-9-5-3-6-10-18)21-14-13-20(22(29-2)32-21)26-24(28)31-16-19-11-7-4-8-12-19/h3-12,17,20-22H,13-16H2,1-2H3,(H,25,27)(H,26,28)/t17-,20+,21-,22-/m0/s1
99239-15-3Relevant academic research and scientific papers
SYNTHESIS OF PROTECTED PURPUROSAMINE B AND 6-EPIPURPUROSAMINE B
Yasuda, Nobuyoshi,Matsuda, Keiji,Tsutsumi, Hideo,Takaya, Takao
, p. 51 - 62 (2007/10/02)
In relation to the synthesis of antipseudomonal drugs, namely, gentamicin C2 and 3-de-O-methylsporaricin A, a protected purpurosamine B (15) and 6-epipurpurosamine B (13) were synthesized.The key intermediate, methyl 2,3,4,7-tetradeoxy-6-O-(met