4991-51-9

Basic information

• Product Name: Trisulfide, bis(4-methylphenyl)
• CAS NO: 4991-51-9
• Molecular Formula: C14H14S3
• Molecular Weight: 278.463
• Mol File: 4991-51-9.mol
• Article Data: 16

Chemical Properties

• CAS DataBase Reference: Trisulfide, bis(4-methylphenyl)(CAS DataBase Reference)
• NIST Chemistry Reference: Trisulfide, bis(4-methylphenyl)(4991-51-9)
• EPA Substance Registry System: Trisulfide, bis(4-methylphenyl)(4991-51-9)

Safety Data

• Hazardous Substances Data: 4991-51-9(Hazardous Substances Data)

Usage

General Description

Trisulfide, bis(4-methylphenyl) is a chemical compound with the formula (C7H7S)2S3. It is a yellowish, foul-smelling solid that is insoluble in water but soluble in organic solvents. Trisulfide, bis(4-methylphenyl) is mainly used as a laboratory reagent and in the manufacture of other chemicals. It is also known to have insecticidal properties and is used in some insect repellents. The compound is flammable and should be handled with caution, as it can release toxic fumes when heated or burned.

Upstream product

• 222851-56-1 N-phenylsulfinylamine 
• 106-45-6 para-thiocresol 
• 10048-06-3 p-Tolyl-N-methyl-trithiopercarbamat 
• 71-43-2 benzene 
• 108-88-3 toluene 
• 100-25-4 para-dinitrobenzene 
• 24696-54-6 tri-n-butyltin(4-CH₃-C₆H₄S) 
• 16601-12-0 S-(4-toluenesulfonyl) 4-toluenethiosulfonate 
• 933-00-6 p-methylbenzenesulfenyl chloride 
• 25769-92-0 di-(4-tolyl)-tetrasulfide 
• 603-35-0 triphenylphosphine 
• 6481-73-8 S-p-tolyl 4-methylbenzenesulfinothioate 
• 3385-94-2 hexamethyldisilathiane 
• 534-18-9 sodium trithiocarbonate 

Downstream Products

• 103-19-5 di(p-tolyl) disulfide 
• 3878-45-3 triphenylphosphine sulfide 
• 791-28-6 Triphenylphosphine oxide 
• 16601-16-4 1-benzyl-2-n-butyldisulfide 
• 4154-77-2 hexaethyl-thiophosphamide 
• 150-60-7 dibenzyl disulphide 
• 16601-17-5 phenyl phenylmethyl disulfide 
• 16599-23-8 Benzyl 4-methylphenyl trisulfane 
• 16601-19-7 1-(benzyl)-2-(4-methylphenyl)disulfide 

Relevant articles and documents

3,4-Dichloro-1,2,5-thiadiazole: a commercially available electrophilic sulfur transfer agent and safe resource of ethanedinitrile

3,4-Dichloro-1,2,5-thiadiazole is introduced as a safe and efficient sulfur transfer reagent. By applying this commercially available reagent, the symmetrical trisulfides and ethanedinitrile were simultaneously obtained by reacting various thiols with this reagent at room temperature. This reagent is non-toxic, inexpensive, and commercially available. In addition, no higher-order polysulfides were detected in all cases after the completion of the reaction. The short reaction times (20–50 min), excellent selectivity, and high yield of the trisulfides are some attractive merits of this reagent for the preparation of trisulfides. The reaction is one-pot, and isolation-purification of intermediates is not required. The procedure was readily scaled up to 5 grams. A mechanism is presented to explain the chemistry.

Electrochemical Synthesis of Organic Polysulfides from Disulfides by Sulfur Insertion from S8 and an Unexpected Solvent Effect on the Product Distribution

An electrochemical synthesis of organic polysulfides through sulfur insertion from elemental sulfur to disulfides or thiols is introduced. The highly economic, low-sensitive and low-priced reaction gives a mixture of polysulfides, whose distribution can be influenced by the addition of different amounts of carbon disulfide as co-solvent. To describe the variable distribution function of the polysulfides, a novel parameter, the “absorbance average sulfur amount in polysulfides” (SAP) was introduced and defined on the basis of the “number average molar mass” used in polymer chemistry. Various organic polysulfides were synthesized with variable volume fractions of carbon disulfide, and the yield of each polysulfide was determined by quantitative 13C NMR. Moreover, by using two symmetrical disulfides or a disulfide and a thiol as starting materials, a mixture of symmetrical and asymmetrical polysulfides could be obtained.

Novel and efficient methods for the synthesis of symmetrical trisulfides

We have developed convenient methods for the synthesis of symmetrical trisulfides under mild conditions in very good yields. The described methods are based on the straightforward preparation of (5,5-dimethyl-2-thioxo-1,3,2- dioxaphosphorin-2-yl)disulfany