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67237-52-9

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67237-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67237-52-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,2,3 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 67237-52:
(7*6)+(6*7)+(5*2)+(4*3)+(3*7)+(2*5)+(1*2)=139
139 % 10 = 9
So 67237-52-9 is a valid CAS Registry Number.

67237-52-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-ethynyl-1-methylpyrrole

1.2 Other means of identification

Product number -
Other names 2-ETHYNYL-1-METHYL-1H-PYRROLE

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:67237-52-9 SDS

67237-52-9Relevant articles and documents

Direct synthesis of heteroarylethynes via palladiumcatalyzed coupling of heteroaryl halides with ethynylzinc halides. Its application to an efficient synthesis of a thiophenelactone from chamaemelum nobile

Negishi, Ei-Ichi,Xu, Caiding,Tan, Ze,Kotora, Martin

, p. 209 - 214 (2007/10/03)

A variety of terminal alkynes containing a heteroaryl group can be directly and selectively synthesized by the Pd-catalyzed coupling of heteroaryl iodides or bromides with ethynylzinc halides. Various compounds of this class containing furan, thiophene, and pyridine have been prepared, and the procedure has been applied to an efficient and selective synthesis of a thiophenelactone from Chamaemelum nobile L.

Unusually sluggish copper(I)catalyzed oxidative dimerization of 2-ethynyl-1-methylpyrrole

Vasilevsky, S. F.,Verkruijsse, H. D.,Brandsma, L.

, p. 529 - 530 (2007/10/02)

Reaction of 2-ethynyl-1-methylpyrrole with oxygen in the presence of catalytic amounts of copper(I)chloride proceeds only upon addition of 1,8-diazabicycloundec-7-ene (DBU).

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