N-Ethylthiourea

CAS 625-53-6C2H5NHCSNH2Organic Building Blocks

N-Ethylthiourea (CAS 625-53-6) is an organic compound with the linear formula C2H5NHCSNH2 and a molecular weight of 104.17 g/mol. As a thiourea derivative, it serves as a valuable building block in chemical synthesis. Its applications include the preparation of rhenium complexes for potential use in nuclear medicine and as a reagent in chemoselective cleavage protocols for amides. TSS offers this chemical for research and synthesis purposes.

IUPAC: 1-Ethylthiourea
Synonyms: 1-Ethylthiourea

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N-Ethylthiourea (C2H5NHCSNH2) — chemical structure, CAS 625-53-6; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksSulfur CompoundsThioureas

01 /Applications

Precursor for Rhenium Complexes

N-Ethylthiourea has been utilised in the synthesis of Re (III) complexes. These complexes act as precursors for novel rhenium compounds with potential applications in the field of nuclear medicine.

Chemical Synthesis Reagent

This compound is employed in multi-step chemical synthesis protocols. For instance, it has been used in a two-step method for the chemoselective cleavage of 2-hydroxy acid amides.

Organic Building Block

As an organic building block, N-Ethylthiourea contributes to the construction of more complex molecular structures. Its functional groups are amenable to various synthetic transformations.

02 /Properties

Molecular weight	104.17
Linear formula	C2H5NHCSNH2
Assay	99%
Solubility	methanol: soluble25 mg/mL, clear, colorless
Application	N-Ethylthiourea was used in the preparation of Re (III) complexes, which are precursors for the new rhenium complexes, potentially useful in nuclear medicine1. It was also used in two-step protocol for the first chemoselective cleavage of 2-hydroxy acid amides2.
Melting point	108-110 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Toxic (GHS06) — Toxic

Danger

Hazard statements

H301Toxic if swallowed

Precautionary statements

P301IF SWALLOWED

Protective equipment	Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 2811 6.1 / PGIII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	T
Risk statements (R)	25
Safety statements (S)	36/37/39-45

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

04 /Identifiers & registry

CAS number

625-53-6

MDL number

MFCD00004939

PubChem substance

24855217

Beilstein registry

1699551

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 N-Ethylthiourea used for?

N-Ethylthiourea is used as a building block in chemical synthesis, including the preparation of rhenium complexes for potential nuclear medicine applications and in protocols for the cleavage of amides.

What is the CAS number and formula for N-Ethylthiourea?

The CAS number for N-Ethylthiourea is 625-53-6, and its linear formula is C2H5NHCSNH2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies N-Ethylthiourea with an assay of 99%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.

How should N-Ethylthiourea be handled safely?

N-Ethylthiourea is classified as toxic if swallowed (H301) and requires careful handling. Use appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a P2 respirator, and follow safety statements P301 + P310.