Cas 642409-91-4,Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester

642409-91-4

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Basic information

Product Name: Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester
Synonyms: Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester
CAS NO:642409-91-4
Molecular Formula:
Molecular Weight: 722.7
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester(CAS DataBase Reference)
NIST Chemistry Reference: Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester(642409-91-4)
EPA Substance Registry System: Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester(642409-91-4)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 642409-91-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 642409-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,2,4,0 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 642409-91:
(8*6)+(7*4)+(6*2)+(5*4)+(4*0)+(3*9)+(2*9)+(1*1)=154
154 % 10 = 4
So 642409-91-4 is a valid CAS Registry Number.

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642409-91-4Relevant academic research and scientific papers

Synthesis and antiproliferative activity of retroetoposide

Meresse, Philippe,Magiatis, Prokopios,Bertounesque, Emmanuel,Monneret, Claude

, p. 4107 - 4109 (2007/10/03)

Retro-4′-demethyl-4-epipodophyllotoxin 6 was synthesized in eight steps and 10% overall yield from 4′-demethyl-4-epipodophyllotoxin 12. Subsequent coupling of 22 with 1-O-trimethylsilyl-4,6-O-ethylidene-β-D- glucoside 26 afforded retroetoposide 5 which is

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