1(2H)-Phthalazinone
Names
[ CAS No. ]:
119-39-1
[ Name ]:
1(2H)-Phthalazinone
[Synonym ]:
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
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
MSDS
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
Precursor & DownStream
Precursor
DownStream
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%