Cas 1269438-98-3,(1S,3S,7S,10R,11S,12S,16S)-3-((E)-1-(1,5-dimethyl-1H-pyrazol-3-yl)prop-1-en-2-yl)-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione

1269438-98-3

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Product Name: (1S,3S,7S,10R,11S,12S,16S)-3-((E)-1-(1,5-dimethyl-1H-pyrazol-3-yl)prop-1-en-2-yl)-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione
Synonyms: (1S,3S,7S,10R,11S,12S,16S)-3-((E)-1-(1,5-dimethyl-1H-pyrazol-3-yl)prop-1-en-2-yl)-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione
CAS NO:1269438-98-3
Molecular Formula:
Molecular Weight: 647.059
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: (1S,3S,7S,10R,11S,12S,16S)-3-((E)-1-(1,5-dimethyl-1H-pyrazol-3-yl)prop-1-en-2-yl)-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione(CAS DataBase Reference)
NIST Chemistry Reference: (1S,3S,7S,10R,11S,12S,16S)-3-((E)-1-(1,5-dimethyl-1H-pyrazol-3-yl)prop-1-en-2-yl)-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione(1269438-98-3)
EPA Substance Registry System: (1S,3S,7S,10R,11S,12S,16S)-3-((E)-1-(1,5-dimethyl-1H-pyrazol-3-yl)prop-1-en-2-yl)-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione(1269438-98-3)

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: 1269438-98-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1269438-98-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,9,4,3 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1269438-98:
(9*1)+(8*2)+(7*6)+(6*9)+(5*4)+(4*3)+(3*8)+(2*9)+(1*8)=203
203 % 10 = 3
So 1269438-98-3 is a valid CAS Registry Number.

1269438-98-3Upstream product

5744-51-4 ethyl 1,5-dimethyl-1H-pyrazole-3-carboxylate

1269438-98-3Downstream Products

1269438-98-3Relevant academic research and scientific papers

Stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants

Schiess, Raphael,Gertsch, Juerg,Schweizer, W. Bernd,Altmann, Karl-Heinz

, p. 1436 - 1439 (2011)

A general strategy has been devised for the stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants thereof, which relies on late stage introduction of the heterocycle through Wittig olefination of ketone 14. Formation of the macrocycle was achieved through RCM-based ring closure and introduction of the cyclopropane moiety involved a highly selective Charette cyclopropanation of allylic alcohol 7.

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