155-04-4

Basic information

• Product Name: Zinc 2-mercaptobenzothiazole
• Synonyms: 2(3H)-Benzothiazolethione,zincsalt;2-benzothiazolethiol,zincsalt(2:1);2-benzothiazolethiolzincsalt;accelerator(zmbt);bantex;bis(2-benzothiazolethiolato)-zin;bis(2-benzothiazolylthio)zinc;bis(benzothiazole-2-thiolato)zinc
• CAS NO: 155-04-4
• Molecular Formula: 2C₇H₄NS₂*Zn
• Molecular Weight: 397.88
• EINECS: 205-840-3
• Product Categories: Industrial/Fine Chemicals;Organic-metal salt
• Mol File: 155-04-4.mol
• Article Data: 4

Chemical Properties

• Melting Point: 330 °C
• Boiling Point: 281.3 °C at 760 mmHg
• Flash Point: 123.9 °C
• Appearance: Off-white to pale yellow powder
• Density: 1.7 g/cm3(Temp: 25 °C)
• Storage Temp.: Refrigerator
• Solubility: Acidic Methanol (Slightly, Heated)
• PKA: 7.03[at 20 ℃]
• Water Solubility: 20.6mg/L at 20℃
• CAS DataBase Reference: Zinc 2-mercaptobenzothiazole(CAS DataBase Reference)
• NIST Chemistry Reference: Zinc 2-mercaptobenzothiazole(155-04-4)
• EPA Substance Registry System: Zinc 2-mercaptobenzothiazole(155-04-4)

Safety Data

• RTECS: DL7000000
• Hazardous Substances Data: 155-04-4(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 155-04-4 differently. You can refer to the following data:
1. Accelerator for latex, powder coating, fungicide.
2. Zinc 2-Mercaptobenzothiazole is an additive which is used in flooring material to allow excellent hardening at low temperatures.

Flammability and Explosibility

Notclassified

Contact allergens

Such mercaptobenzothiazole hydrosoluble salts are used as antioxidants and biocides in cutting fluids and greases, paints, or glues.

Safety Profile

Poison by intraperitoneal route.Moderately toxic by ingestion and subcutaneous routes.Questionable carcinogen with experimental carcinogenicdata. When heated to decomposition it emits very toxicfumes of SOx, NOx, and ZnO.

InChI:InChI=1/C7H5NS2.Zn/c9-7-8-5-3-1-2-4-6(5)10-7;/h1-4H,(H,8,9);/q;+2

Synthetic route

2-Mercaptobenzothiazole (149-30-4) + zinc(II) sulfate (7733-02-0) → 2-mercaptobenzothiazole thiazole zinc (155-04-4)

Conditions	Yield
In water Milling; Green chemistry;	99.5%

2-thioxo-3H-1,3-benzothiazole (149-30-4) + zinc(II) acetate dihydrate (5970-45-6) → 2-mercaptobenzothiazole thiazole zinc (155-04-4)

Conditions	Yield
In ethanol addn. of Zn-compound to hot soln. of ligand with stirring;; filtration of ppt.; washed (EtOH); dried (vacuum, 80°C);	85%

zinc diacetate (557-34-6) + 2-Mercaptobenzothiazole (149-30-4) → 2-mercaptobenzothiazole thiazole zinc (155-04-4)

Conditions	Yield
In ethanol mixing the soln. of Zn(CH3CO2)2 and 2-mercaptobenzothiazole with stirring, 30 min cooling in ice water bath, filtration; collection of the precipitate, washing (de-ionized water), vac. drying at 60 °C overnight;

2-Mercaptobenzothiazole (149-30-4) → 2-mercaptobenzothiazole thiazole zinc (155-04-4)

Conditions	Yield
With carbon dioxide; ammonia; potassium hydroxide; zinc(II) oxide In water at 50 - 100℃; pH=8.57 - 10.67; Product distribution / selectivity;

2-mercaptobenzothiazole thiazole zinc (155-04-4) → 2,2'-bipyridine bis(benzothiazole-2-thionato)zinc(II) (152272-24-7)

Conditions	Yield
With (C5H4N)2 In chloroform; N,N-dimethyl-formamide addn. of ligand in CHCl3/DMF to suspn. fo Zn-compound in CHCl3 at room temp.; stirred for 2 h;; filtration; filtrate allowed to stand at room temp. for 5 d; pptn.; vacuum filtration; washing (acetone); elem. anal.;	85%

2-mercaptobenzothiazole thiazole zinc (155-04-4) → zinc(II)(benzothiazole-2-thiolate)2(pyridine)2 (154155-38-1, 14740-86-4)

Conditions	Yield
With pyridine In pyridine slow addn. of Zn-compound to dry pyridine at room temp. with stirring;; filtration; filtrate allowed to stand for 1 week at room temp.; pptn.; filtration; crystals dried (N2-stream); elem. anal.;	80%

1,10-Phenanthroline (66-71-7) + 2-mercaptobenzothiazole thiazole zinc (155-04-4) → zinc(II)(benzothiazole-2-thiolate)2(1,10-phenanthroline)

Conditions	Yield
In chloroform; N,N-dimethyl-formamide addn. of ligand in CHCl3/DMF to suspn. fo Zn-compound in CHCl3 at room temp.; stirred for 12 h at 60°C;; filtration; filtrate allowed to stand at room temp. for 2 weeks; pptn.; vacuum filtration; elem. anal.;	70%

2-chlorobenzo[d][1,3]thiazole (615-20-3) + 2-mercaptobenzothiazole thiazole zinc (155-04-4) → 2,2'-thiobis(benzothiazole) (4074-77-5)

Conditions	Yield
In chlorobenzene Heating;

2-chloro-6-nitrobenzothiazole (2407-11-6) + 2-mercaptobenzothiazole thiazole zinc (155-04-4) → 6-nitro-2,2'-sulfanediyl-bis-benzothiazole (91960-67-7)

Conditions	Yield
In benzene Heating;

chloroacetic acid ethyl ester (105-39-5) + 2-mercaptobenzothiazole thiazole zinc (155-04-4) → ethyl 2-(benzo[d]thiazol-2-ylthio)acetate (24044-88-0)

Conditions	Yield
In chlorobenzene for 8h; Heating;

N,N-diethylthiocarbamoyl chloride (88-11-9) + 2-mercaptobenzothiazole thiazole zinc (155-04-4) → benzo[d]thiazol-2-yl diethylcarbamodithioate (95-30-7)

Conditions	Yield
In benzene Heating;

2-mercaptobenzothiazole thiazole zinc (155-04-4) + 1-chloro-2,4-dinitro-benzene (97-00-7) → 2-<(2,4-dinitrophenyl)thio>benzotiazole (4230-91-5)

Conditions	Yield
In chlorobenzene for 7h; Heating;

2-mercaptobenzothiazole thiazole zinc (155-04-4) + N,N-Dimethylthiocarbamoyl chloride (16420-13-6) → benzo[d]thiazol-2-yl dimethylcarbamodithioate (3432-25-5)

Conditions	Yield
In benzene Heating;

2-mercaptobenzothiazole thiazole zinc (155-04-4) → zinc sulfide

Conditions	Yield
In further solvent(s) addn. of oleylamine to Zn(Mer)2, vac. evapn. at 100 °C for 30 min, cooling to room temp. Zn(Mer)2 addn., Ar bubbling for 20 min, flash heating to 270 °C for 3.5 h - 12 h in inert atmosphere; centrifugation, washing (EtOH), vac. drying;

Upstream product

• 149-30-4 2-Mercaptobenzothiazole 
• 7733-02-0 zinc(II) sulfate 
• 149-30-4 2-thioxo-3H-1,3-benzothiazole 
• 5970-45-6 zinc(II) acetate dihydrate 
• 557-34-6 zinc diacetate 

Downstream Products

• 3432-25-5 benzothiazole-2-dimethylaminodithioformate 
• 4230-91-5 2-<(2,4-dinitrophenyl)thio>benzotiazole 
• 95-30-7 benzo[d]thiazol-2-yl diethylcarbamodithioate 

Relevant articles and documents

Size-dependent optical and electrochemical band gaps of ZnS nanorods fabricated through single molecule precursor route

The colloidal, highly crystalline, and size-controlled ZnS nanorods have been prepared through a thermal decomposition of single-source-precursor approach in oleylamine solution. The length and width of nanorods can be controlled simply by varying the molar ratio of zinc 2-mercaptobenzothiazole complex and oleylamine or prolonging the anneal duration. Optical and electrochemical properties of different sizes of ZnS nanorods are discussed and size-dependent optical and electrochemical band gaps are evidently observed, which show a direct correlation between the electronic spectra and electrochemical band gap.

A mercapto thiazole metal compound of the ball mill method for synthesizing

The invention discloses a ball milling synthesis method of mercaptothiazole type metal compounds as shown in formula (I) and formula (II). The method comprises the steps of adding 2-amino-5-mercapto-1, 3, 4-thiadiazole or 2-mercaptobenzothiazole into a ball milling reactor, further adding a ball body, a metal salt and a solvent to perform ball milling reaction, performing TLC (tracking level control) monitoring, performing post-treatment on a reaction mixture after the end of reaction, adding 2-amino-5-mercapto-1, 3, 4-thiadiazole to obtain the compounds as shown in the formula (I), and adding 2-mercaptobenzothiazole to obtain the compounds as shown in the formula (II). The synthesis method of the mercaptothiazole type metal compounds, provided by the invention, has the advantages of simple process, effect of basically eliminating three wastes and high yield, and is suitable for industrial applications.