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99840-54-7

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99840-54-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99840-54-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,4 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99840-54:
(7*9)+(6*9)+(5*8)+(4*4)+(3*0)+(2*5)+(1*4)=187
187 % 10 = 7
So 99840-54-7 is a valid CAS Registry Number.

99840-54-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-[2-(1H-pyrrol-2-yl)propan-2-yl]-1H-pyrrole

1.2 Other means of identification

Product number -
Other names 2,2'-(propane-2,2-diyl)bis(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:99840-54-7 SDS

99840-54-7Relevant articles and documents

Design of neutral metallomesogens from 5,5-dimethyldipyrromethane: Metal ion mediated control of folding and hairpin structures

Ames, Kelly A.,Collinson, Simon R.,Blake, Alexander J.,Wilson, Claire,Love, Jason B.,Bruce, Duncan W.,Donnio, Bertrand,Guillon, Daniel,Schroeder, Martin

, p. 5056 - 5066 (2008)

New ligands derived from 5,5-dimethyldipyrromethane and their corresponding neutral complexes with ZnII and PdII are described. The ligands incorporate either a hexacatenar [H2(1n), n = 1, 10, 12, 14 and 16], te

1,2-Phenylene-Incorporated Smallest Expanded Calix[4]pyrrole via One-Step Synthesis of Tetrapyrrane: A Fluorescent Host for Fluoride Ion

Kumar, B. Sathish,Chandra, Brijesh,Jovan Jose,Panda, Pradeepta K.

supporting information, p. 10536 - 10543 (2021/08/20)

Synthesis of tetrapyrrane 8 from acetone and pyrrole via one-step condensation was achieved for the first time along with a much-improved yield of the tripyrrane 9. Diborylation of the tetrapyrrane and subsequent 1 + 1 cyclocoupling with 1,2-diiodobenzene following the Suzuki protocol generated novel o-phenylene incorporated macrocycle belonging to the smallest meso-expanded calix[4]pyrrole family. The latter macrocycle displays exclusive turn-on fluorescence sensing of fluoride ion upon complexation via a unique partial cone conformation supported by DFT analysis in acetonitrile solvent.

C-Bridged Bispyrrolidines and Bispiperidines as New Ligands

Stumpf, Tim-Daniel J.,Steinbach, Manfred,H?ltke, Magdalene,Heuger, Gerold,Grasemann, Franka,Fr?hlich, Roland,Schindler, Siegfried,G?ttlich, Richard

, p. 5538 - 5547 (2018/10/25)

The preparation of methylene-bridged C2-symmetric nitrogen-heterocycles as a new class of ligands is described, including methylene-bridged pyridines, quinolones, piperidines and pyrrolidines. These methylene-bridged aromatic systems are obtained via a microwave assisted Ziegler-type reaction. The separation of diastereomers and the application of the copper complexes of these ligands for cyclopropanation reactions proves the applicability of these new types of ligands.

Synthesis and Resolution of a Chiral Diamine: 2,2′-(Propane-2,2-diyl)dipyrrolidine

Kotthaus, Andreas F.,Ballaschk, Frederic,Stakaj, Vjoni,Mohr, Fabian,Kirsch, Stefan F.

, p. 3107 - 3111 (2017/07/12)

A short and practical synthesis of a new chiral dipyrrolidine is presented. The three-step route includes a hydrogenation and a resolution with mandelic acid, which easily affords large quantities of the title compound.

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