2,5-Dimercapto-1,3,4-thiadiazole

Agent Name
2,5-Dimercapto-1,3,4-thiadiazole
CAS Number
1072-71-5
Formula
C2-H2-N2-S3
Major Category
Other Classes
2,5-Dimercapto-1,3,4-thiadiazole formula graphical representation
Synonyms
1,3,4-Thiadiazol-dithiol-(2,5) [German]; 1,3,4-Thiadiazole-2,5-dithiol; 1,3,4-Thiadiazolidine-2,5-dithione; 2,5-Dimercapto-1,3,4-thiodiazole; 2,5-Dimercaptothiadiazole; Bismuthiol I; Dimercaptothiadiazole; PY 61H; [ChemIDplus] DMcT; Bismuthiol; D 2; DMTD; Vanchem DMTD; [NTP]
Category
Sulfur Compounds
Description
Slightly yellow solid with an irritating odor; [NTP] Yellow powder with a stench; [Alfa Aesar MSDS]
Sources/Uses
Used in flame and scorch retardant products, to make polymers, heavy metal salts, basic salts, pharmaceuticals, and dyes, in cross linking halogenated polymers, electrode compositions, photography, as an additive in lubricating oils and greases, corrosion inhibitor (for metals, metal coatings, and paints), chelating agent in metal analysis, adhesion improver, biocide, and for purifying and treating wastewater; [NTP]
Comments
A severe eye irritant; [RTECS] An irritant that can cause chemical conjunctivitis; Report of 7 cases of allergic sensitization from a manufacturing plant; A derivative (CUVAN 826) is a contact sensitizer in guinea pigs; [NTP] An irritant that may cause serious eye injury; Harmful by ingestion; Oral LD50 (rat) = 1,616 mg/kg; [Alfa Aesar MSDS]
Reference Link #1
Contact allergy to 2,5-dimercapto-1,3,4-thiadiazole and phenyl-alpha-naphtylamine, allergens in industrial greases and lubricant oils--contact allergy to water-insoluble greases is uncommon but needs to be considered in some workers.
Biomedical References
Search PubMed

Exposure Assessment

Lethal Concentration
LC50 (rat) = 3,090 mg/m3

Adverse Effects

Skin Sensitizer
Yes

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: