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69187-12-8

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69187-12-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69187-12-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,1,8 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 69187-12:
(7*6)+(6*9)+(5*1)+(4*8)+(3*7)+(2*1)+(1*2)=158
158 % 10 = 8
So 69187-12-8 is a valid CAS Registry Number.

69187-12-8SDS

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 1-butyl p-tolyl disulfide

1.2 Other means of identification

Product number -
Other names Butyl-p-tolyl-disulfid

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:69187-12-8 SDS

69187-12-8Downstream Products

69187-12-8Relevant articles and documents

PdCl2/DMSO-Catalyzed Thiol-Disulfide Exchange: Synthesis of Unsymmetrical Disulfide

Guo, Jimin,Zha, Jianjian,Zhang, Tao,Ding, Chang-Hua,Tan, Qitao,Xu, Bin

supporting information, p. 3167 - 3172 (2021/05/05)

Unsymmetrical disulfides have been effectively prepared through thiol exchange with symmetrical disulfides employing a simple PdCl2/DMSO catalytic system. The given method features excellent functional group tolerance, a broad substrate scope, and operational simplicity. This reaction is especially useful for late-stage functionalization of bioactive scaffolds such as peptides and pharmaceuticals. Disulfide-containing organic dyes have also been prepared. This transformation could be extended to thiol-diselenide or thiol-ditelluride exchange affording RS-SeR′ or RS-TeR′.

Thiolation of Pyridine-2-sulfonamides using Magnesium Thiolates

Balkenhohl, Moritz,Heinz, Benjamin,Knochel, Paul

, p. 4452 - 4462 (2019/11/21)

The thiolation of pyridine-2-sulfonamides using magnesium thiolates is reported. The ortho-functionalizations of these sulfonamides using TMPMgCl·LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) followed by electrophilic quenching produced a range of 3-functiona

One-pot synthesis of unsymmetrical disulfides using 1-chlorobenzotriazole as oxidant: Interception of the sulfenyl chloride intermediate

Stellenboom, Nashia,Hunter, Roger,Caira, Mino R.

experimental part, p. 3228 - 3241 (2010/06/13)

A high-yielding and low temperature one-pot procedure is described for unsymmetrical disulfide synthesis from two different thiols using 1-chlorobenzotriazole (BtCl) as oxidant. The mechanism of the coupling involves in situ trapping of the sulfenyl chloride intermediate R1SCl by nucleophilic benzotriazole (BtH) to form R1SBt, which protects R1SCl from forming the homodimer R1SSR1. The methodology is applicable to all types of thiol (aliphatic, aromatic, heteroaromatic), with a variation developed for aliphatic-aliphatic couplings. Differentially N-protected cysteines couple to afford the unsymmetrical cystine derivatives in high yield (90%), which serves as a model for the one-pot intermolecular coupling of cysteine-containing peptides to form peptide disulfide heterodimers. Minimal exchange in aromatic-aromatic disulfide synthesis is noted on account of the mild conditions.

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