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Chloridazon

Also known as: Pyrazon, 5-Amino-4-chloro-2-phenyl-3(2H)-pyridazinone, 5-Amino-4-chloro-2-phenylpyridazin-3(2H)-one, 1-Phenyl-4-amino-5-chloro-6-oxo-(1H)pyridazine, 1-fenyl-4-amino-5-chlor-6-pyridazinon, 1-phenyl-4-amino-5-chloropyridaz-6-one, 1-phenyl-4-amino-5-chloropyridazin-6-one, 1-phenyl-4-amino-5-chloropyridazone-6, 1-phenyl-4-amino-5-chlorpyridaz-6-one, 3(2H)-Pyridazinone, 5-amino-4-chloro-2-phenyl-, 4-chloro-5-amino-2-phenyl-3(2H)-pyridazinone, 5-Amino-4-chlor-2-phenylpyridazin-3(2H)-on, 5-Amino-4-chloro-2-phenyl-2H-pyridazin-3-one, Chloridazon, Pyrazon, EINECS 216-920-2, MFCD00055402, PYRAMIN

Chloridazon (CAS 1698-60-8) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H8ClN3O and a molecular weight of 221.643 g/mol. Key properties include a melting point of 206ºC (tech., 198-202ºC), a boiling point of 312.2±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 142.6±30.7 °C. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1698-60-8
Jingsj CID
J-32546-0
Molecular Formula
C10H8ClN3O
Molecular Weight
221.643 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point206ºC (tech., 198-202ºC)
Boiling Point312.2±52.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point142.6±30.7 °C
Exact Mass221.035583
PSA60.91000
LogP0.73
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.668

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H317 — May cause an allergic skin reaction
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2933990017
Summary2933990017 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazine-5,8-diium bromide。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0%

Frequently Asked Questions

What is the CAS number of Chloridazon?

The CAS number of Chloridazon is 1698-60-8.

What are the molecular formula and molecular weight of Chloridazon?

Chloridazon has molecular formula C10H8ClN3O and molecular weight 221.643 g/mol.

Is Chloridazon hazardous?

Chloridazon has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Chloridazon?

For Chloridazon, Upstream Products: 4,5-Dichloro-2-phenylpyridazin-3(2H)-one, 4-Hydroxybenzoic acid, 4-Hydroxyphenylacetic acid; Downstream Products: Amezinium methylsulfate.

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

Last updated:

How to cite: Jingsj. "Chloridazon (CAS 1698-60-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32546-0 (accessed 2026-11-06).

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