6-Nitro-3,4-dihydro-2H-1,4-benzoxazine

Modify Date: 2026-08-03 11:47:30

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure
6-Nitro-3,4-dihydro-2H-1,4-benzoxazine structure
Common Name 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine
CAS Number 28226-22-4 Molecular Weight 180.16100
Density 1.332g/cm3 Boiling Point 337.1ºC at 760mmHg
Molecular Formula C8H8N2O3 Melting Point 117-119ºC
MSDS N/A Flash Point 157.7ºC

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.332g/cm3
Boiling Point 337.1ºC at 760mmHg
Melting Point 117-119ºC
Molecular Formula C8H8N2O3
Molecular Weight 180.16100
Flash Point 157.7ºC
Exact Mass 180.05300
PSA 67.08000
LogP 2.06030
Vapour Pressure 0.000107mmHg at 25°C
Index of Refraction 1.585
InChIKey GZAJZBARYACGSO-UHFFFAOYSA-N
SMILES O=[N+]([O-])c1ccc2c(c1)NCCO2

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Material Safety Data Sheet

Section1. Identification of the substance
6-Nitro-3,4-dihydro-2H-1,4-benzoxazine
Product Name:
Synonyms:

Section2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
H315:Causes skin irritation
H319:Causes serious eye irritation
H335:May cause respiratory irritation
P261:Avoid breathing dust/fume/gas/mist/vapours/spray
Wear protective gloves/protective clothing/eye protection/face protection
P280:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
and easy to do – continue rinsing
P304+P340:IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P405:Store locked up

Section3. Composition/information on ingredients.
6-Nitro-3,4-dihydro-2H-1,4-benzoxazine
Ingredient name:
CAS number:28226-22-4

Section4. First aid measures
Immediately wash skin with copious amounts of water for at least 15 minutes while removing
Skin contact:
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.
Ingestion:

Section5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Storage:Store in closed vessels, refrigerated.

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Not specified
Appearance:
Boiling point:No data
Melting point:No data
Flash point:No data
Density:No data
Molecular formula:C8H8N2O3
Molecular weight:180.2

Section10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xi
HS Code 2934999090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~99%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: Szczepankiewicz, Bruce G.; Heathcock, Clayton H. Tetrahedron, 1997 , vol. 53, # 26 p. 8853 - 8870

~66%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: SLOAN-KETTERING INSTITUTE FOR CANCER RESEARCH; CHIOSIS, Gabriela; TALDONE, Tony; SUN, Weilin Patent: WO2011/44394 A1, 2011 ; Location in patent: Page/Page column 117-118 ;

~78%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: Foeldenyi; Szalontai; Szebenyi; Kvintovics; Bartik Monatshefte fur Chemie, 1996 , vol. 127, # 3 p. 305 - 311

~%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: Petter, Russell C.; Jewell, Charles F.; Lee, Kwangho; Medikonda, Aravind Prasad; Niu, Deqiang; Qiao, Lixin; Singh, Juswinder; Zhu, Zhendong Patent: US2011/269244 A1, 2011 ;

~%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: Foeldenyi; Szalontai; Szebenyi; Kvintovics; Bartik Monatshefte fur Chemie, 1996 , vol. 127, # 3 p. 305 - 311

~%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: Petter, Russell C.; Jewell, Charles F.; Lee, Kwangho; Medikonda, Aravind Prasad; Niu, Deqiang; Qiao, Lixin; Singh, Juswinder; Zhu, Zhendong Patent: US2011/269244 A1, 2011 ;

~13%

6-Nitro-3,4-dihydro-2H-1,4-benzoxazine Structure

6-Nitro-3,4-dih...

CAS#:28226-22-4

Learn More
Literature: Wubbels, Gene G.; Halverson, Ann M.; Oxman, Joe D.; Bruyn, Van H. De Journal of Organic Chemistry, 1985 , vol. 50, # 23 p. 4499 - 4504

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

6-NITRO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE
6-Nitro-3,4-dihydro-2H-benzo[b][1,4]oxazine

 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the boiling point of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: Boiling point of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is 337.1ºC at 760mmHg.
Q: What is the melting point of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: Melting point of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is 117-119ºC.
Q: What is the CAS number of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: CAS number of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is 28226-22-4.
Q: What is the SMILES notation of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: SMILES notation of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is O=[N+]([O-])c1ccc2c(c1)NCCO2.
Q: What are the downstream products of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: Related downstream products(CAS) of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine: 120711-82-2;823191-53-3;928118-00-7;928118-23-4.
Q: What is the molecular weight of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: Molecular weight of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is 180.16100.
Q: What is the InChIKey of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: InChIKey of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is GZAJZBARYACGSO-UHFFFAOYSA-N.
Q: What are the upstream materials of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: Related upstream materials(CAS) of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine: 81721-87-1;106-93-4;99-57-0;120711-79-7;70886-35-0;30924-93-7;98395-62-1.
Q: What is the polar surface area (PSA) of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine?
A: Polar surface area (PSA) of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine is 67.08000.
Q: What English synonyms does 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine have?
A: English synonyms of 6-Nitro-3,4-dihydro-2H-1,4-benzoxazine: 6-NITRO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE, 6-Nitro-3,4-dihydro-2H-benzo[b][1,4]oxazine.

 6-Nitro-3,4-dihydro-2H-1,4-benzoxazinefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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