1,3,4-Thiadiazole-2,5-dithiol

CAS 1072-71-5C2H2N2S3Chemical Synthesis

1,3,4-Thiadiazole-2,5-dithiol (CAS: 1072-71-5) is a heterocyclic organic compound with the empirical formula C2H2N2S3 and a molecular weight of 150.25. This compound serves as a valuable reagent in analytical chemistry, particularly for the spectrophotometric determination of bismuth, copper, and lead. Its thiol functional groups contribute to its reactivity in forming complexes with metal ions. Tech Serve Solutions supplies this chemical for research and industrial applications.

IUPAC: 1,3,4-Thiadiazole-2,5-dithiol,Bismuthiol I,Bismuththiol I
Synonyms: 5-dithiol,1072-71-5, C2H2N2S3, Bismuthiol I, Bismuththiol I

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1,3,4-Thiadiazole-2,5-dithiol (C2H2N2S3) — chemical structure, CAS 1072-71-5; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisHeterocyclic Building BlocksThiadiazoles

01 /Applications

Analytical Reagent

Utilised for the quantitative determination of bismuth, copper, and lead. It forms distinct coloured complexes with these metal ions, enabling their detection and measurement via spectrophotometric methods.

Chemical Synthesis

Serves as a building block in organic synthesis, particularly for creating more complex heterocyclic structures containing the thiadiazole moiety. Its dithiol nature allows for various derivatisation reactions.

Metal Ion Complexation

The presence of two thiol groups makes it effective in forming complexes with various metal ions, finding potential applications in areas such as metal scavenging or coordination chemistry research.

02 /Properties

Molecular weight	150.25
Empirical formula	C2H2N2S3
Assay	98%
Application	Reagent for the determination of bismuth, copper and lead.
Melting point	162 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements

P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Transport (UN / ADR)	UN 3335
Water hazard class (WGK, DE)	2
Hazard codes (EU)	Xi
Risk statements (R)	36
Safety statements (S)	26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1072-71-5

MDL number

MFCD00003103

PubChem substance

24893399

Beilstein registry

113444

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 1,3,4-Thiadiazole-2,5-dithiol used for?

1,3,4-Thiadiazole-2,5-dithiol is primarily used as a reagent for the determination of bismuth, copper, and lead. It also functions as a building block in chemical synthesis.

What is the CAS number and formula for 1,3,4-Thiadiazole-2,5-dithiol?

The CAS number is 1072-71-5, and the empirical formula is C2H2N2S3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 1,3,4-Thiadiazole-2,5-dithiol with an assay of 98%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.

How should 1,3,4-Thiadiazole-2,5-dithiol be handled?

As per the GHS07 hazard statement H319, this compound causes serious eye irritation. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask type N95 (US). Ensure adequate ventilation and avoid dust formation.

How is 1,3,4-Thiadiazole-2,5-dithiol packed, shipped, and exported?

1,3,4-Thiadiazole-2,5-dithiol is carefully packed according to international shipping regulations and is available for global export by Tech Serve Solutions.