1891-75-4 Usage
General Description
2,9-Phenanthrenediol, 4b,5,6,7,8,8a,9,10-octahydro-4b,8,8-trimethyl-1-(1-methylethyl)-, 2-acetate, (4bS,8aS,9S)- is a complex chemical compound with multiple substituents and functional groups. It contains a phenanthrene ring structure with two hydroxyl groups at positions 2 and 9. Additionally, it has an acetate group attached to the phenanthrene structure. The compound also features an octahydro octahydro-4b,8,8-trimethyl-1-(1-methylethyl) side chain. The stereochemistry of the compound is specified as (4bS,8aS,9S), indicating the arrangement of atoms and groups in three-dimensional space. Overall, this chemical compound is a highly structured and potentially dynamic molecule with various potential applications in organic chemistry and pharmaceutical research.
Check Digit Verification of cas no
The CAS Registry Mumber 1891-75-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,9 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1891-75:
(6*1)+(5*8)+(4*9)+(3*1)+(2*7)+(1*5)=104
104 % 10 = 4
So 1891-75-4 is a valid CAS Registry Number.
1891-75-4Relevant articles and documents
The synthesis and antibacterial activity of totarol derivatives. Part 3: modification of ring-B
Evans, Gary B.,Furneaux, Richard H.,Gainsford, Graeme J.,Murphy, Michael P.
, p. 1663 - 1675 (2007/10/03)
Ring-B derivatization of totarol (1) afforded the series of compounds 2-22 which were screened in vitro against: β-lactamase-positive and high level gentamycin-resistant Enterococcus faecalis, penicillin-resistant Streptococcus pneumoniae, methicillin-resistant Staphylococcus aureus (MRSA), and multiresistant Klebsiella pneumoniae. Several of the derivatives retained much of the antibacterial activity of totatol against the first three of these organisms (all Gram-positive), but none was more active. The Gram-negative Klebsiella was resistant to all compounds examined. Totarol (1) was shown to uncouple oxidative phosphorylation in isolated mitochondria at 50 μM. Copyright (C) 2000 Elsevier Science Ltd.
