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1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea

Also known as: Dimethyl [(E)-(methylthio)methylylidene]biscarbamate, Dimethyl [(Z)-(methylthio)methylylidene]biscarbamate, Dimethyl [(methylthio)methylylidene]biscarbamate, 1,3-Bis(carbomethoxy)-S-methylisothiourea, 1,3-Bis(methoxycarbonyl)-S-methylisothiourea, 2-Methylisothiourea-1,3-dicarboxylate, Carbamic acid, N,N'-[(methylthio)methylidyne]bis-, dimethyl ester, Methyl [[(methoxycarbonyl)amino](methylthio)methylene]carbamate, EINECS 252-240-2, MFCD00674104

1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea (CAS 34840-23-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H10N2O4S and a molecular weight of 206.220 g/mol. Key properties include a melting point of 102-105ºC(lit.) and a density of 1.3±0.1 g/cm3. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34840-23-8
Jingsj CID
J-21211-3
Molecular Formula
C6H10N2O4S
Molecular Weight
206.220 g/mol
Category
Organic Compounds
Last updated
8/21/2026
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Physicochemical Properties

Melting Point102-105ºC(lit.)
Density1.3±0.1 g/cm3
Exact Mass206.036133
PSA102.29000
LogP1.03
Refractive Index1.520

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Frequently Asked Questions

What is the CAS number of 1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea?

The CAS number of 1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea is 34840-23-8.

What are the molecular formula and molecular weight of 1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea?

1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea has molecular formula C6H10N2O4S and molecular weight 206.220 g/mol.

Is 1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea hazardous?

1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea?

For 1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea, Upstream Products: 2-Methyl-2-thiopseudourea sulfate, S-Methylisothiourea hemisulfate, 2-Methyl-2-thiopseudourea sulfate (2:1); Downstream Products: Febantel, Albendazole, 9-Deazaguanine.

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

Last updated:

How to cite: Jingsj. "1,3-Bis(methoxycarbonyl)-2-methyl-2-thiopseudourea (CAS 34840-23-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21211-3 (accessed 2026-11-09).

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