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49852-40-6

49852-40-6

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49852-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49852-40-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,8,5 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 49852-40:
(7*4)+(6*9)+(5*8)+(4*5)+(3*2)+(2*4)+(1*0)=156
156 % 10 = 6
So 49852-40-6 is a valid CAS Registry Number.
InChI:InChI=1/C8H8/c1-2-4-6-8-7-5-3-1/h1-2,7-8H2

49852-40-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,5-Cyclooctadiyne

1.2 Other means of identification

Product number -
Other names -

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:49852-40-6 SDS

49852-40-6Relevant articles and documents

Preparation of 1,5-Cyclooctadiyne and 1,3,5,7-Cylooctatetraene from 1,5-Cyclooctadiene

Detert, Heiner,Rose, Bernd,Mayer, Winfried,Meier, Herbert

, p. 1529 - 1532 (2007/10/02)

Bromination of 1,5-cyclooctadiene (1) and stepwise dehydrobromination first with KOtBu and then with KOtBu/18-crown-6 yields 1,5-cyclooctadiyne (5).A prolonged interaction of the base causes a complete transformation to cyclooctatetraene (6).Diyne 5 and even more the intermediate enyne 4 are highly reactive dienophiles.The cycloadducts 10-14 formed with 1,3-cyclohexadiene, carbon disulphide, and tetraphenylcyclopentadienone were isolated and characterized.Treatment of 5 with titanium tetrachloride induces a vigorous polymerization. - Key Words: Cycloalkynes / Dehydrohalogenation / Cycloaddition

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