1(2H)-Phthalazinone

Modify Date: 2024-01-02 08:05:41

1(2H)-Phthalazinone Structure
1(2H)-Phthalazinone structure
 Common Name 1(2H)-Phthalazinone
CAS Number 119-39-1 Molecular Weight 146.146
Density 1.3±0.1 g/cm3 Boiling Point 423.4±18.0 °C at 760 mmHg
Molecular Formula C8H6N2O Melting Point 183-185 °C(lit.)
MSDS N/A Flash Point 209.9±21.2 °C

 Names

Name phthalazin-1(2H)-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.3±0.1 g/cm3
Boiling Point 423.4±18.0 °C at 760 mmHg
Melting Point 183-185 °C(lit.)
Molecular Formula C8H6N2O
Molecular Weight 146.146
Flash Point 209.9±21.2 °C
Exact Mass 146.048019
PSA 45.75000
LogP 0.82
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.705

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TH9185000
CHEMICAL NAME :
1(2H)Phthalazinone
CAS REGISTRY NUMBER :
119-39-1
LAST UPDATED :
199701
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C8-H6-N2-O
MOLECULAR WEIGHT :
146.16
WISWESSER LINE NOTATION :
T66 BVMNJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
370 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IHFCAY Industrial Hygiene Foundation of America, Chemical and Toxicological Series, Bulletin. (Pittsburgh, PA) 1947-69. Volume(issue)/page/year: 6,1,1967
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
180 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00139

 Safety Information

Hazard Codes Xn:Harmful;
Risk Phrases R22;R36/37/38;R68
Safety Phrases S22-S24/25-S36/37/39-S26
WGK Germany 3
RTECS TH9185000
HS Code 29339990

 Synthetic Route

 Customs

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%

 Synonyms

phthalazinol
1(2H)-phthalazinone
2,3-Phthalazinone
1,2H-PHTHALAZONE
phthalazin-1(2H)-one
1-phthalazinone
MFCD00006892
1,2-Dihydro-1-oxophthalazine
PTLZ
1-oxophthalazine
phthalazin-1-one
Benzo[d]pyridazin-1(2H)one
EINECS 204-319-8
phthalazinone
Pthalazone
2H-phthalazin-1-one
PHTHALAZONE
Phthalazin-1-ol
1-phthalazinol
Phtalazin-1-ol
1(2H)-Phthalazinone
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