Cas 402571-20-4,(4S,5S,6R,8R)-2-((3S,4S,5S,6S)-6-Ethyl-2,4-dihydroxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-8-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)-5-(4-methoxy-benzyloxy)-4,6-dimethyl-nonane-3,7-dione

402571-20-4

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Basic information

Product Name: (4S,5S,6R,8R)-2-((3S,4S,5S,6S)-6-Ethyl-2,4-dihydroxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-8-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)-5-(4-methoxy-benzyloxy)-4,6-dimethyl-nonane-3,7-dione
Synonyms: (4S,5S,6R,8R)-2-((3S,4S,5S,6S)-6-Ethyl-2,4-dihydroxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-8-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)-5-(4-methoxy-benzyloxy)-4,6-dimethyl-nonane-3,7-dione
CAS NO:402571-20-4
Molecular Formula:
Molecular Weight: 642.83
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: (4S,5S,6R,8R)-2-((3S,4S,5S,6S)-6-Ethyl-2,4-dihydroxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-8-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)-5-(4-methoxy-benzyloxy)-4,6-dimethyl-nonane-3,7-dione(CAS DataBase Reference)
NIST Chemistry Reference: (4S,5S,6R,8R)-2-((3S,4S,5S,6S)-6-Ethyl-2,4-dihydroxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-8-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)-5-(4-methoxy-benzyloxy)-4,6-dimethyl-nonane-3,7-dione(402571-20-4)
EPA Substance Registry System: (4S,5S,6R,8R)-2-((3S,4S,5S,6S)-6-Ethyl-2,4-dihydroxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-8-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)-5-(4-methoxy-benzyloxy)-4,6-dimethyl-nonane-3,7-dione(402571-20-4)

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: 402571-20-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 402571-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,5,7 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 402571-20:
(8*4)+(7*0)+(6*2)+(5*5)+(4*7)+(3*1)+(2*2)+(1*0)=104
104 % 10 = 4
So 402571-20-4 is a valid CAS Registry Number.

402571-20-4Upstream product

402571-19-1 2-[(1S,2S,3R,4R,5R,6S,7R,9S)-9-((4S,5R,6S)-2,2-Di-tert-butyl-6-ethyl-5-methyl-[1,3,2]dioxasilinan-4-yl)-6-hydroxy-4-(4-methoxy-benzyloxy)-1,3,5,7-tetramethyl-8-oxo-2-triethylsilanyloxy-decyl]-6-ethyl-3,5-dimethyl-pyran-4-one

402571-20-4Downstream Products

402571-20-4Relevant academic research and scientific papers

Total synthesis of siphonarin B and dihydrosiphonarin B.

Paterson, Ian,Chen, David Yu-Kai,Franklin, Alison S

, p. 391 - 394 (2007/10/03)

The spirocyclic core of the siphonarins was constructed by a directed cyclization of a linear triketone, prepared using a Sn(II)-mediated aldol coupling and Swern oxidation at C9 and C13. To circumvent a facile retro-Claisen pathway generating a baconipyr

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