Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Semicarbazide,4,4',4''-phosphinylidynetris[1-phenyl- (8CI)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
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Contact: Ms Wang
Email: enquiry@dycnchem.com

16221-22-0

16221-22-0 structure

16221-22-0 structure

Name: Semicarbazide,4,4',4''-phosphinylidynetris[1-phenyl- (8CI)
Chemical Name: 1-anilino-3-bis(anilinocarbamoylamino)phosphorylurea
CAS Number: 16221-22-0
Molecular Formula: C₂₁H₂₄N₉O₄P
Molecular Weight: 497.44700
Create Date: 2016-03-30 00:04:28
Modify Date: 2025-09-12 17:45:24

Name	1-anilino-3-bis(anilinocarbamoylamino)phosphorylurea
Synonyms	4,4',4''-Phosphinylidynetris(1-phenylsemicarbazide) Semicarbazide,4,4',4''-phosphinylidynetris(1-phenyl n,n',n''-phosphoryltris(2-phenylhydrazinecarboxamide)

Density	1.471g/cm3
Molecular Formula	C₂₁H₂₄N₉O₄P
Molecular Weight	497.44700
Exact Mass	497.16900
PSA	186.36000
LogP	5.63780
Index of Refraction	1.709

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VT4028000

CHEMICAL NAME :: Semicarbazide, 4,4',4''-phosphinylidynetris(1-phenyl-

CAS REGISTRY NUMBER :: 16221-22-0

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C21-H24-N9-O4-P

MOLECULAR WEIGHT :: 497.51

WISWESSER LINE NOTATION :: RMMVMPO&MVMMR&MVMMR

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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#06836

1858-24-8 structure

1858-24-8

100-63-0 structure

100-63-0

~%

16221-22-0 structure

16221-22-0

Literature: Cates Journal of medicinal chemistry, 1967 , vol. 10, # 5 p. 924 - 927

Precursor 2
1858-24-8 100-63-0
DownStream 0

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