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N,N'-Diethylthiourea

Also known as: 1,3-Diethyl-2-thiourea, 1,3-Diethylthiourea, DETU, Diethylthiourea, N,N'-Diethylthiocarbamide, 1,3-Diethyl-2-thio-urea

N,N'-Diethylthiourea (CAS 105-55-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H12N2S and a molecular weight of 132.22700 g/mol. Key properties include a melting point of 76-78 °C(lit.), a boiling point of 169.2ºC at 760 mmHg, a density of 1,12 g/cm3 and a flash point of 186 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
105-55-5
Jingsj CID
J-27426-0
Molecular Formula
C5H12N2S
Molecular Weight
132.22700 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point76-78 °C(lit.)
Boiling Point169.2ºC at 760 mmHg
Density1,12 g/cm3
Flash Point186 °C
Exact Mass132.07200
PSA56.15000
LogP1.27210
Vapor Pressure1.56mmHg at 25°C
Refractive Index1.505
Additional Property38 g/L (20 ºC)

GHS Safety & Compliance

Corrosion / Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H317 — May cause an allergic skin reaction
  • H318 — Causes serious eye damage
  • H372 — Causes damage to organs through prolonged exposure
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N,N'-Diethylthiourea?

The CAS number of N,N'-Diethylthiourea is 105-55-5.

What are the molecular formula and molecular weight of N,N'-Diethylthiourea?

N,N'-Diethylthiourea has molecular formula C5H12N2S and molecular weight 132.22700 g/mol.

Is N,N'-Diethylthiourea hazardous?

N,N'-Diethylthiourea has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of N,N'-Diethylthiourea?

For N,N'-Diethylthiourea, Upstream Products: Ethyl isothiocyanate, N-Phenylhydroxylamine, Ethylamine; Downstream Products: Ethyl isothiocyanate, Ethylamine, Tributylborane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N,N'-Diethylthiourea (CAS 105-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27426-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.