402958-21-8 Usage
Molecular Weight
220.31 g/mol
Functional Group
Ester
Structural Features
Ethyl group (C2H5) attached to carbon atom at position 1
Phenylmethyl group (C6H5-CH2) attached to carbon atom at position 2
Stereochemistry
(1S,3aR,6aS)-
1S
Clockwise arrangement of atoms around the chiral center at position 1
3aR
Counterclockwise arrangement of atoms around the chiral center at position 3a
6aS
Clockwise arrangement of atoms around the chiral center at position 6a
Chiral Centers
3 (at positions 1, 3a, and 6a)
Optical Activity
Exhibits optical activity due to the presence of chiral centers
Applications
Potential use in pharmaceuticals
Utilization in organic synthesis
Reference standard in analytical chemistry
Solubility
Soluble in organic solvents like ethanol, methanol, and dichloromethane
Stability
Stable under normal conditions, but sensitive to heat, light, and moisture
Reactivity
Can undergo hydrolysis, transesterification, and other reactions involving the ester functional group
Hazards
May be harmful if swallowed, inhaled, or absorbed through the skin; avoid contact with eyes and prolonged exposure
Storage
Store in a cool, dry, and well-ventilated area, away from heat and light sources, and in a sealed container
Purity
Typically synthesized with high purity for specific applications in research and industry
Check Digit Verification of cas no
The CAS Registry Mumber 402958-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,5 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 402958-21:
(8*4)+(7*0)+(6*2)+(5*9)+(4*5)+(3*8)+(2*2)+(1*1)=138
138 % 10 = 8
So 402958-21-8 is a valid CAS Registry Number.
402958-21-8Relevant articles and documents
Telaprevir intermediate preparation method
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, (2017/08/31)
The invention discloses a telaprevir intermediate preparation method. A telaprevir intermediate is a formula I compound, and a reaction route is as shown in the specification, wherein R is selected from C1-C4 alkyl groups, R1 is selected from hydrogen, C1-C8 alkyl groups, C1-C8 alkoxy groups, C6-C12 aryl groups, alkyl sulfonyl, C6-C12 aryl sulfonyl groups or substituted C6-C12 aryl sulfonyl groups, and P is an amino protection group. The method has advantages of simplicity in operation, safety, freeness of pollution and special requirements on equipment, low production cost, high yield and the like, is suitable for large-scale production and has a high practical value in realization of telaprevir industrialization.
