Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2,3-Dihydrophthalazine-1,4-dione
Price: Check
Purity: 99.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 2,3-Dihydrophthalazine-1,4-dione
Price: ￥328.0/100g ￥118.0/25g
Purity: 99.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Phthalhydrazide
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Phthalhydrazide
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

1445-69-8

1445-69-8 structure

1445-69-8 structure

Name: 2,3-Dihydrophthalazine-1,4-dione
Chemical Name: Phthalhydrazide
CAS Number: 1445-69-8
Molecular Formula: C₈H₆N₂O₂
Molecular Weight: 162.145
Catalog: Chemical reagent Organic reagent 肼
Create Date: 2018-06-10 19:01:09
Modify Date: 2025-08-25 15:03:07

Name	Phthalhydrazide
Synonyms	1,4-Phthalazinedione 1,4-DIHYDROXYPHTHALAZINE Phthalohydrazide N,N'-Phthaloylhydrazine 2,3-DIHYDRO-PHTHALAZINE-1,4-DIONE 1,4-phthalazinediol 2,3-dihydrophthalazine-1,4-dione 2,3-Dihydro-1,4-phthalazinedione Phthalhydrizide PHTHALHYDRAZINE PHTHALIC HYDRAZIDE PHTALYLHYDRAZINE phthalazine-1,4-diol Phthalodihydrazide 1,4-Phthalazinedione, 2,3-dihydro- 2,3-Dihydro-1,4-phthalazinedione ; Phthalhydrazine EINECS 215-893-4 MFCD00006888 1,4-Ketophthalazine Phthaloylhydrazine

Density	1.3±0.1 g/cm3
Boiling Point	523.5ºC at 760 mmHg
Melting Point	>300 °C(lit.)
Molecular Formula	C₈H₆N₂O₂
Molecular Weight	162.145
Flash Point	270.4ºC
Exact Mass	162.042923
PSA	65.72000
LogP	0.57
Vapour Pressure	1.41E-11mmHg at 25°C
Index of Refraction	1.587

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TH8890080

CHEMICAL NAME :: 1,4-Phthalazinedione, 2,3-dihydro-

CAS REGISTRY NUMBER :: 1445-69-8

LAST UPDATED :: 199509

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C8-H6-N2-O2

MOLECULAR WEIGHT :: 162.16

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 700 mg/kg

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

REFERENCE :: ARPMAS Archiv der Pharmazie (Weinheim, Germany) (VCH Pub., Inc., 303 NW 12th Ave., Deerfield Beach, FL 33441) V.51-261, 1835-1923; V.305- 1972- Volume(issue)/page/year: 327,237,1994 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 700 mg/kg

SEX/DURATION :: female 7 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

REFERENCE :: ARPMAS Archiv der Pharmazie (Weinheim, Germany) (VCH Pub., Inc., 303 NW 12th Ave., Deerfield Beach, FL 33441) V.51-261, 1835-1923; V.305- 1972- Volume(issue)/page/year: 327,237,1994

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Safety Phrases	S24/25
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	TH8890080
HS Code	2933990090

Precursor 0
DownStream 10
484-23-1 19064-73-4 3660-90-0 27702-18-7
27702-22-3 27702-33-6 27702-28-9 27702-20-1
2257-69-4 51935-42-3

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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