Paraquat dichloride

百草枯

Also known as: Methyl viologen dichloride, 1,1'-Dimethyl-4,4'-bipyridinium dichloride, Paraquat chloride, Gramoxone, Weedol, PP 148, PP910, 1,1'-dimethyl-4,4'-bipyridilium dichloride, N,N'-Dimethyl-4,4'-dipyridylium dichloride

Paraquat dichloride (CAS 1910-42-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H14Cl2N2 and a molecular weight of 257.159 g/mol. It is also known as Methyl viologen dichloride, 1,1'-Dimethyl-4,4'-bipyridinium dichloride and Paraquat chloride. Key properties include a melting point of >300 °C(lit.), a boiling point of 175ºC and a density of 1.25. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1910-42-5
Jingsj CID: J-8842-2
Molecular Formula: C₁₂H₁₄Cl₂N₂
Chinese Name: 百草枯
Molecular Weight: 257.159 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	>300 °C(lit.)
Boiling Point	175ºC
Density	1.25
Exact Mass	256.053406
PSA	7.76000
Additional Property	soluble

Activity & Biological Data

Additional Information	[1]. Hamadi NK, et al. Adsorption of Paraquat dichloride from aqueous solution by activated carbon derived from used tires. J Hazard Mater. 2004 Aug 9;112(1-2):133-41. [2]. Clark D G, et al. The toxicity of paraquat[J]. Occupational and Environmental Medicine, 1966, 23(2): 126-132. [3]. Ladipo M K, et al. Acute Toxicity, Behavioural Changes and Histopathological Effect of Paraquat Dichloride on Tissues of Catfish (Clarias Gariepinus)[J]. International Journal of Biology, 2011. [4]. Lock E A, et al. Paraquat[M]//Hayes' Handbook of Pesticide Toxicology. Academic Press, 2010: 1771-1827.

Additional Information

[1]. Hamadi NK, et al. Adsorption of Paraquat dichloride from aqueous solution by activated carbon derived from used tires. J Hazard Mater. 2004 Aug 9;112(1-2):133-41. [2]. Clark D G, et al. The toxicity of paraquat[J]. Occupational and Environmental Medicine, 1966, 23(2): 126-132. [3]. Ladipo M K, et al. Acute Toxicity, Behavioural Changes and Histopathological Effect of Paraquat Dichloride on Tissues of Catfish (Clarias Gariepinus)[J]. International Journal of Biology, 2011. [4]. Lock E A, et al. Paraquat[M]//Hayes' Handbook of Pesticide Toxicology. Academic Press, 2010: 1771-1827.

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Paraquat dichloride?

The CAS number of Paraquat dichloride is 1910-42-5.

What are the molecular formula and molecular weight of Paraquat dichloride?

Paraquat dichloride has molecular formula C12H14Cl2N2 and molecular weight 257.159 g/mol.

What are the upstream and downstream products of Paraquat dichloride?

For Paraquat dichloride, Upstream Products: 4,4'-Bipyridine, iodomethane, Dimethyl sulfate; Downstream Products: Paraquat dichloride, nitrobenzene, Octanal.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Paraquat dichloride (CAS 1910-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8842-2 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.