Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4-Nitrosophenol
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Nitrosophenol
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: 4-Nitrosophenol
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

104-91-6

104-91-6 structure

104-91-6 structure

Name: 4-Nitrosophenol
Chemical Name: 4-Nitrosophenol
CAS Number: 104-91-6
Molecular Formula: C₆H₅NO₂
Molecular Weight: 123.109
Catalog: Chemical reagent Organic reagent Phenols
Create Date: 2018-03-17 08:00:00
Modify Date: 2025-08-23 17:15:39

Name	4-Nitrosophenol
Synonyms	p-Quinone Monoxime 4-nitroso-pheno Quinomeoxime 1,4-Benzoquinone Monoxime 4-hydroxynitrosobenzene MFCD00002329 4-nitrosobenzyl alcohol P-NITROSOPHENOL 4-Nitrosophenol Phenol, 4-nitroso- quinoneoxime C-nitrosophenol para-nitrosophenol nitroso-4phenol 1-nitroso-4-hydroxy-benzene 4-Nitrosofenol EINECS 203-251-6 Nitrosophenol

Density	1.2±0.1 g/cm3
Boiling Point	265.9±23.0 °C at 760 mmHg
Melting Point	132-144°C
Molecular Formula	C₆H₅NO₂
Molecular Weight	123.109
Flash Point	114.6±22.6 °C
Exact Mass	123.032028
PSA	49.66000
LogP	1.27
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.564
Stability	Stability Flammable. Incompatible with strong oxidizing agents. Explodes when heated, or in contact with acids or alkalies.
Water Solubility	<0.1 g/100 mL at 21 ºC

CHEMICAL IDENTIFICATION

RTECS NUMBER :: SM4725000

CHEMICAL NAME :: Phenol, p-nitroso-

CAS REGISTRY NUMBER :: 104-91-6

BEILSTEIN REFERENCE NO. :: 1856695

LAST UPDATED :: 199701

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C6-H5-N-O2

MOLECULAR WEIGHT :: 123.12

WISWESSER LINE NOTATION :: QR DNO

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Parenteral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 200 mg/kg

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

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Rodent - rat Liver

DOSE/DURATION :: 750 ug/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 153,57,1985

Hazard Codes	Xn,N
Risk Phrases	R21/22
Safety Phrases	S15-S24/25-S26-S61-S49-S47-S36/37/39
RIDADR	3236
RTECS	SM4725000
Packaging Group	II
Hazard Class	4.1
HS Code	2908999090

Precursor 9
108-95-2 123-30-8 13446-48-5 7664-93-9
623-07-4 1516-21-8 3420-97-1 63975-21-3
100-65-2
DownStream 10
1473-33-2 106-41-2 106-48-9 123-31-9
100-02-7 123-30-8 619-08-9 540-38-5
23576-79-6 99-28-5

HS Code	2908999090
Summary	2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

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