2,2′-Thiodiethanethiol - technical grade, ≥90% , CAS No.3570-55-6

CAS: 3570-55-6 Cat. No.: T477069 Formula: C4H10S3 Molecular Weight: 154.3 Beilstein Registry Number: 1(4)2455 EC Number: 222-671-0
AVAILABLE TO ORDER
GRADE & PURITY Technical grade ? Technical grade — industrial-quality purity with no tight impurity guarantees. Use for large-scale or non-critical processes where cost matters most. ≥90%
Synonyms
.beta.,.beta.'-Dimercaptoethyl sulfide | Ethanethiol, 2,2'-thiobis- | 2-(2-Sulfanylethylthio)ethane-1-thiol | Bis(mercaptoethyl) sulfide | FT-0691319 | OEU4AZC07S | 1-(2-Methylphenyl)urea | Bis(2-sulfanylethyl) sulfide | 2,2'-DIMERCAPTODIETHYL THIOETHER |
Storage
Room temperature
★
Size
Germany (EU)
USA*
Price
Qty
10g
T477069-10g
Made to order · 8–12 wks

€188.21

€220.32
Save €32.11 (14.57%)
50g
T477069-50g
Made to order · 8–12 wks

€581.30

€678.49
Save €97.19 (14.32%)
Enter a quantity for the sizes you want to add.
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Why this grade

technical grade, ≥90% Technical grade for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
.beta.,.beta.'-Dimercaptoethyl sulfide | Ethanethiol, 2,2'-thiobis- | 2-(2-Sulfanylethylthio)ethane-1-thiol | Bis(mercaptoethyl) sulfide | FT-0691319 | OEU4AZC07S | 1-(2-Methylphenyl)urea | Bis(2-sulfanylethyl) sulfide | 2,2'-DIMERCAPTODIETHYL THIOETHER |
Specifications & Purity
technical grade, ≥90%
Storage
Room temperature
Grade
Technical grade
Purity
≥90%
Names and Identifiers
Canonical Smiles
C(CSCCS)S
IUPAC Name
2-(2-sulfanylethylsulfanyl)ethanethiol
InChIKey
KSJBMDCFYZKAFH-UHFFFAOYSA-N
INCHI
1S/C4H10S3/c5-1-3-7-4-2-6/h5-6H,1-4H2
Isomeric SMILES
C(CSCCS)S
Molecular Weight
154.3
Beilstein
1(4)2455
Reaxy-Rn
1445994
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1445994&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganosulfur compounds
ClassThiols
SubclassAlkylthiols
Intermediate Tree Nodes Not available
Direct ParentAlkylthiols
Alternative Parents Sulfenyl compounds  Dialkylthioethers  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Dialkylthioether - Sulfenyl compound - Thioether - Alkylthiol - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as alkylthiols. These are organic compounds containing the thiol functional group linked to an alkyl chain.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Refractive Index1.5961
Flash Point(°F)90°C(lit.)
Flash Point(°C)90°C(lit.)
Boil Point(°C)135-136 °C
Melt Point(°C)-11 °C
Molecular Weight154.300 g/mol
XLogP31.500
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count4
Exact Mass153.994 Da
Monoisotopic Mass153.994 Da
Topological Polar Surface Area27.300 Ų
Heavy Atom Count7
Formal Charge0
Complexity26.100
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What is the purity of this product?
This product is supplied at ≥90% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
What does technical grade mean?
technical grade indicates that the material has been processed and tested for specialty industrial processing. Specifications focus on the impurities that affect performance in that application — for example, metal content for electronics, particle size for batteries, refractive index for optics, or moisture content for moisture-sensitive processes.
How should this product be stored?
Store at room temperature.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 3570-55-6, the molecular formula is C4H10S3, and the molecular weight is 154.3 g/mol. InChIKey KSJBMDCFYZKAFH-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

📚 Citations by Application

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Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.

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