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68269-87-4

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68269-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68269-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,6 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 68269-87:
(7*6)+(6*8)+(5*2)+(4*6)+(3*9)+(2*8)+(1*7)=174
174 % 10 = 4
So 68269-87-4 is a valid CAS Registry Number.
InChI:InChI=1/C15H24/c1-11-6-9-14-7-5-8-15(11,14)12(2)10-13(14,3)4/h10-11H,5-9H2,1-4H3/t11-,14?,15?/m1/s1

68269-87-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name Modhephene

1.2 Other means of identification

Product number -
Other names (1r)-1,4,4,6-tetramethyl-2,3-dihydro-1h,4h-3a,6a-propanopentalene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:68269-87-4 SDS

68269-87-4Downstream Products

68269-87-4Relevant articles and documents

Molecular rearrangements of (-)-modhephene and (-)-isocomene to a (-)-triquinane

Joseph-Nathan, Pedro,Reyes-Trejo, Benito,Morales-Rios, Martha S.

, p. 4411 - 4417 (2007/10/03)

The preparation and further rearrangement of (-)-modhephene (1) to a (-)-triquinane 5 has been assessed through acid catalysis. The rearrangement involved protonation, 1,2 σ-bond and methyl shifts, and deprotonation. Monitored experiments by 1H NMR spectroscopy suggested the intermediate (-)-isocomene (3), which was further evidenced when a sample of natural (-)-3 undergoes acid-catalyzed conversion to the (-)-triquinane 5. In addition, deuterated (-)-modhephene (1-d) labeled stereospecifically at the 14β geminal methyl group at C4 was synthesized, through the corresponding chiral deuterated primary alcohol, in 5 steps, starting from natural (-)-14-hydroxymodhephene (8), and rearranged under acid catalysis to elucidate the stereochemical factors that control the methyl shift at this position. The final deuterium-labeled (-)-triquinane, 5-d, obtained from [14- 2H1]-1-d was established to have deuterium in the methyl group at C5 by 13C NMR spectroscopy. This stereoselective methyl migration is in accordance with the molecular orbital demand formulated by the quantum chemical calculations performed in the present study.

Homochiral Ketals in Organic Synthesis. Enantioselective Synthesis and Absolute Configuration of (-)-Modhephene

Mash, Eugene A.,Math, Shivanand K.,Flann, Christopher J.

, p. 4945 - 4950 (2007/10/02)

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