Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Stocking Period: 10 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,5-Dichloro-3(2H)-pyridazinone
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

932-22-9

932-22-9 structure

932-22-9 structure

Name: 4,5-Dichloro-3(2H)-pyridazinone
Chemical Name: 4,5-Dichloro-3(2H)-pyridazinone
CAS Number: 932-22-9
Molecular Formula: C₄H₂Cl₂N₂O
Molecular Weight: 164.977
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridazine
Create Date: 2018-03-08 08:00:00
Modify Date: 2026-07-02 17:13:19

Name	4,5-Dichloro-3(2H)-pyridazinone
Synonyms	4,5-DICHLOR-2,3-DIHYDROPYRIDAZIN-3-ON 4,5-Dichloro-3(2H)-pyridazinon 4,5-DICHLOROPYRIDAZIN-3-ONE 4,5-DICHLORO-3(2H)-PYRIDAZINONE 4,5-dichloro-2-hydropyridazin-3-one 4,5-Dichloropyridazine-3-ol Dichloro-3(2H)-Pyridazinone 4,5-dichloropyridazin-3-ol MFCD00051504 4,5-Dichloro-3-pyridazinol 5-Dichloro-2H-pyridazin-3-one 4,5-dichloro-1,2-dihydropyriMidin-2-one 4,5-dichloropyridazin-3(2H)-one LABOTEST-BB LT00138189 4,5-Dichloro-3(2H)-pyridazone 4,5-Dichloro-2H-pyridazin-3-one 4,5-DICHLORO-2H-PYRIDAZIN-3-ONE 4,5-Dichloropyridazin-6(1H)-one 2-[[2-(diethylamino)-1-oxoethyl]amino]-4-methyl-5-(phenylmethyl)-1H-pyrrole-3-cboxamide 4,5-Dichloro-6-pyridazone 4,5-Dichloro-3-pyridazone 4,5-dichloro-3-hydroxypyridazine 4,5-Dichloro-3-hydroxypyridazine 3(2H)-PYRIDAZINONE 4,5-dichloro-3(2h)-pyridazinon 4,5-DICHLORO-3-HYDROXYPYRIDINE OTAVA-BB BB0128630031 3(2H)-pyridazinone, 4,5-dichloro 4,5-dichloro-3-pyridazinol 3-Hydroxy-4,5-dichloropyridazine 4,5-dichloro-1H-pyridazin-6-one 4,5-DICHLORO-3-(2H)PYRIDAZINONE 4,5-Dichloro-6-oxo-1H-pyridazine 4,5-Dichloro-pyridazin-3-ol 4,5-DICHLOROPYRIDAZIN-3(2H)-ONE AURORA KA-447 4,5-dichloro-2,3-dihydropyridazin-3-one 4,5-Dichloro-3(2H)-pyridazinone ISO 9001：2015 REACH 4,5-Dichloro-3-hydroxypyr 4,5-Dichloro-3(2H)-pyridazinone> 4,5-DICHLORO-2,3-DIHYDROPYRIDAZIN-3-ONE TIMTEC-BB SBB003910 4,5-Dichloro-2,3-dihydropyridazine-3-one 4,5-Dichloro-2,3-dihydro-3-oxopyridazine 4 5-DICHLORO-3-HYDROXYPYRIDAZINE oro-3-hydroxypyridazine

Density	1.8±0.1 g/cm3
Boiling Point	339.2ºC at 760 mmHg
Melting Point	204-206 °C(lit.)
Molecular Formula	C₄H₂Cl₂N₂O
Molecular Weight	164.977
Flash Point	159ºC
Exact Mass	163.954422
PSA	45.75000
LogP	-0.10
Index of Refraction	1.662

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UR6182000

CHEMICAL NAME :: 3(2H)-Pyridazinone, 4,5-dichloro-

CAS REGISTRY NUMBER :: 932-22-9

LAST UPDATED :: 199212

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C4-H2-Cl2-N2-O

MOLECULAR WEIGHT :: 164.98

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 40,921,1985

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >300 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 40,921,1985

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302
Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	UR6182000
HS Code	2933990090

Precursor 10
766-40-5 87-56-9 123-30-8 859214-48-5
637-89-8 1193-02-8 51355-97-6 134541-32-5
155164-66-2 155164-67-3
DownStream 10
40175-80-2 41933-33-9 504-30-3 933-76-6
2854-59-3 825633-94-1 6959-56-4 6339-19-1
55271-58-4 63910-43-0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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