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16737-04-5

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16737-04-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16737-04-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,7,3 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 16737-04:
(7*1)+(6*6)+(5*7)+(4*3)+(3*7)+(2*0)+(1*4)=115
115 % 10 = 5
So 16737-04-5 is a valid CAS Registry Number.

16737-04-5SDS

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 oct-7-yn-2-one

1.2 Other means of identification

Product number -
Other names 7-Octyn-2-one

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:16737-04-5 SDS

16737-04-5Relevant articles and documents

Cyclisation de composes acetyliniques carbonyles via leur ether d'enol silyle: II. Synthese et reactivite de quelques ethers d'enols derivees d'aldehydes ou de cetones acetyleniques terminaux

Boaventura, Maria-Amelia,Drouin, Jacques

, p. 1015 - 1026 (2007/10/02)

A number of silyl enol ethers of ω-acetylenic ketones or aldehydes have been prepared following various literature procedures which are compared to each other.By treatment with mercury (II) chloride (1.1 equiv.) in the presence of HMDS (0.2 or 1.5 equiv.) at room temperature, followed by acidification with aqueous HCl-NaI, silyl enol ethers 1, 2, 3, 9, 11, 12 and 13 are cyclized in high yield into 2-alkylidene-1-oxocyclopentanes, methylene- spiro or poly-cyclanones, a methylene cyclopentane unit being formed in the reaction.In the same way, from silyl enol ethers 4, 8 and 10 a methylenecyclohexane unit is formed.In all the products the exocyclic position of the C=C double bond so formed is fully maintained.

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