Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Magneson II
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Magneson II
Price: ￥108.0/100g
Purity: 95.0%
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1-Naphthalenol,4-[2-(4-nitrophenyl)diazenyl]-
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Purity: 98.0%
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Henan Tianfu Chemical Co., Ltd.
China
Product Name: Magneson II
Price: ￥Inquiry/1kg ￥Inquiry/1g
Purity: 99.0%
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Contact: Anson
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5290-62-0

5290-62-0 structure

5290-62-0 structure

Name: Magneson II
Chemical Name: 4-(4-nitrophenylazo)-1-naphthol
CAS Number: 5290-62-0
Molecular Formula: C₁₆H₁₁N₃O₃
Molecular Weight: 293.277
Catalog: Chemical reagent Organic reagent Bicyclic compound
Create Date: 2018-04-09 08:00:00
Modify Date: 2025-08-26 18:03:45

Name	4-(4-nitrophenylazo)-1-naphthol
Synonyms	1-hydroxy-4-(4-nitrophenylazo)naphthalene 1-Naphthol, 4-[(p-nitrophenyl)azo]- 4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol 4-[(p-Nitrophenyl)azo]-1-naphthol 4-Hydroxy-1-<4-nitro-benzolazo>-naphthalin 4-(4-Nitrophenylazo)-1-naphthol EINECS 226-129-4 4-(p-Nitrophenylazo)-1-naphthol MAGNESON II Magnezon II P-NITROBENZENEAZO-A-NAPHTHOL 1-Naphthalenol, 4-[(E)-2-(4-nitrophenyl)diazenyl]- MagnesoneII 4'-NITROBENZENE-AZO-1-NAPHTHOL Magneson 2 MFCD00003975 (4-Nitro-benzol)-(1 azo 4)-naphthol-(1) α-Naphthol Magneson 4-<4-Nitro-phenylazo>-<1>naphthol 4-<p-nitrophenylazo>-1-naphthol 4-((4-Nitrophenyl)diazenyl)naphthalen-1-ol 4-[(4-Nitrophenyl)azo]-1-naphthol

Density	1.4±0.1 g/cm3
Boiling Point	554.3±35.0 °C at 760 mmHg
Melting Point	270 °C (dec.)(lit.)
Molecular Formula	C₁₆H₁₁N₃O₃
Molecular Weight	293.277
Flash Point	289.0±25.9 °C
Exact Mass	293.080048
PSA	90.77000
LogP	4.85
Vapour Pressure	0.0±1.6 mmHg at 25°C
Index of Refraction	1.673
Stability	Stable. Incompatible with strong oxidizing agents, strong bases.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QL4510100

CHEMICAL NAME :: 1-Naphthol, 4-((p-nitrophenyl)azo)-

CAS REGISTRY NUMBER :: 5290-62-0

BEILSTEIN REFERENCE NO. :: 0961660

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C16-H11-N3-O3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >500 mg/kg

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

REFERENCE :: NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,14,1953

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi, C, F
Risk Phrases	R36/37/38
Safety Phrases	S22-S24/25-S26-S36
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	QL4510100
HS Code	2927000090

Precursor 9
90-15-3 100-05-0 100-23-2 108953-69-1
100-01-6 64-19-7 2216-69-5 40078-29-3
127-09-3
DownStream 1
2834-90-4

HS Code	2927000090
Summary	2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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