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69940-49-4

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69940-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69940-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,4 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69940-49:
(7*6)+(6*9)+(5*9)+(4*4)+(3*0)+(2*4)+(1*9)=174
174 % 10 = 4
So 69940-49-4 is a valid CAS Registry Number.

69940-49-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name veadeirol

1.2 Other means of identification

Product number -
Other names ((4bS,8aS)-1-Ethyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydro-phenanthren-2-yl)-methanol

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:69940-49-4 SDS

69940-49-4Downstream Products

69940-49-4Relevant articles and documents

PIMARANE AND CLEISTANTHANE DITERPENES FROM VELLOZIACEAE: ABSOLUTE CONFIGURATION AND BIOMIMETIC CONVERSION

Pinto, A. C.,Patitucci, M.L.,Silva, R.S. Da,Queiroz, P.P.S.,Kelecom, A.

, p. 3351 - 3354 (1983)

Pimarane and cleistanthane diterpenes isolated from Velloziaceae are shown, by CD studies, to possess the same (5S,10S) absolute configuration.A biomimetic rearrangement of the pimarane into the cleistanthane skeleton is described.The structure of a new natural diterpene, cleistantha-8,11,13-trien-7-one is also reported.

Birch reduction of 14-methoxypodocarpa-8,11,13-triene and a stereoselective synthesis of veadeiroic acid and veadeirol - Two novel diterpenes with cleistanthane skeleton

Saha, Arabinda,Mahapatra, Bimal,Nasipuri, Dhanonjoy

, p. 721 - 722 (2007/10/02)

14-Methoxypodocarpa-8,11,13-triene (1) has been reduced by Li in liquid NH3, using EtOH-t-BuOH with THF as cosolvent to 14-oxopodocarpa-8(9)-ene (5) as the major product.This is converted successively into a keto-acetal (6), a dihydrobenzaldehyde (8), and an aromatic aldehyde (9) through more or less standard reactions.The aldehyde (9) is oxidised to (+/-)-veadeiroic acid (2a) and reduced to (+/-)-veadeirol (2b) thus effecting the first total synthesis of these two naturally occurring diterpenes with rare cleistanthane skeleton.

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