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303142-40-7

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303142-40-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 303142-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,1,4 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 303142-40:
(8*3)+(7*0)+(6*3)+(5*1)+(4*4)+(3*2)+(2*4)+(1*0)=77
77 % 10 = 7
So 303142-40-7 is a valid CAS Registry Number.

303142-40-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(2-ethynylcyclohexen-1-yl)ethynylbenzene

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:303142-40-7 SDS

303142-40-7Relevant articles and documents

Gold-catalyzed intramolecular [3 + 2]-cycloaddition of arenyne-yne functionalities

Lian, Jian-Jou,Chen, Po-Chiang,Lin, Yau-Ping,Ting, Hao-Chun,Liu, Rai-Shung

, p. 11372 - 11373 (2007/10/03)

We report a new efficient intramolecular [3 + 2]-cycloaddition of unactivated arenyne (or enyne)-yne functionalities, catalyzed mainly by the AuPPh3SbF6 complex (2 mol %) under ambient conditions. The value of this cyclization is ref

Novel chemistry of α-tosyloxy ketones: Applications to the solution- and solid-phase synthesis of privileged heterocycle and enediyne libraries

Nicolaou,Montagnon,Ulven,Baran,Zhong,Sarabiat

, p. 5718 - 5728 (2007/10/03)

New synthetic technologies for the preparation and elaboration of α-tosyloxy ketones in solution and on solid-phase are described. Both olefins and ketones serve as precursors to these relatively stable chemical entities: olefins via a novel one-pot epoxi

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