3,4-dihydro-2H-benzo[b][1,4]oxazine - ≥95% , CAS No.5735-53-5

CAS: 5735-53-5 Cat. No.: H304033 Molecular Weight: 135.17 EC Number: 689-049-2
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
AKOS000271206 | MFCD02181098 | AM20040746 | FT-0655319 | 3,4-Dihydro-2H-1,4-benzoxazine # | SCHEMBL88894 | 3,4-dihydro-2H-benzo[b][1,4]oxazine | DTXSID00342856 | 3,4-Dihydro-1,4(2H)-benzoxazine | 3,4-dihydro-2H-1,4-benzooxazine | A858662 | 2H-1,4-Benzoxaz
Storage
Room temperature,Argon charged
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
H304033-1g
3

$9.90

$14.90
Save $5.00 (33.56%)
5g
H304033-5g
1

$18.90

$28.90
Save $10.00 (34.60%)
10g
H304033-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$30.90

$46.90
Save $16.00 (34.12%)
25g
H304033-25g
2

$73.90

$110.90
Save $37.00 (33.36%)
100g
H304033-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$294.90

$442.90
Save $148.00 (33.42%)
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
AKOS000271206 | MFCD02181098 | AM20040746 | FT-0655319 | 3, 4-Dihydro-2H-1, 4-benzoxazine # | SCHEMBL88894 | 3, 4-dihydro-2H-benzo[b][1, 4]oxazine | DTXSID00342856 | 3, 4-Dihydro-1, 4(2H)-benzoxazine | 3, 4-dihydro-2H-1, 4-benzooxazine | A858662 | 2H-1, 4-Benzoxaz
Specifications & Purity
≥95%
Storage
Room temperature, Argon charged
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Pubchem Sid488190458
Canonical SmilesC1COC2=CC=CC=C2N1
IUPAC Name3,4-dihydro-2H-1,4-benzoxazine
InChIKeyYRLORWPBJZEGBX-UHFFFAOYSA-N
INCHI1S/C8H9NO/c1-2-4-8-7(3-1)9-5-6-10-8/h1-4,9H,5-6H2
Isomeric SMILES C1COC2=CC=CC=C2N1
Molecular Weight 135.17
Reaxy-Rn 3918
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3918&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassBenzoxazines
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentBenzoxazines
Alternative Parents Benzomorpholines  Secondary alkylarylamines  Alkyl aryl ethers  Benzenoids  Oxacyclic compounds  Azacyclic compounds  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Benzomorpholine - Benzoxazine - Alkyl aryl ether - Secondary aliphatic/aromatic amine - Benzenoid - Oxazinane - Oxacycle - Azacycle - Secondary amine - Ether - Amine - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Organic nitrogen compound - Hydrocarbon derivative - Organopnictogen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzoxazines. These are organic compounds containing a benzene fused to an oxazine ring (a six-membered aliphatic ring with four carbon atoms, one oxygen atom, and one nitrogen atom).
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

6 results found

Lot NumberCertificate TypeDateItem
C2624105Certificate of AnalysisMar 28, 2026 H304033
J2225135Certificate of AnalysisAug 11, 2025 H304033
K2108550Certificate of AnalysisSep 09, 2024 H304033
K2108843Certificate of AnalysisSep 09, 2024 H304033
K2108852Certificate of AnalysisSep 09, 2024 H304033
K2108853Certificate of AnalysisSep 09, 2024 H304033
Chemical and Physical Properties
SolubilitySparingly soluble in water.(0.26 g/L) (25°C)
Sensitivityair sensitive
Refractive Index1.60
Flash Point(°C)91 °C
Boil Point(°C)267 °C
Molecular Weight135.160 g/mol
XLogP31.700
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass135.068 Da
Monoisotopic Mass135.068 Da
Topological Polar Surface Area21.300 Ų
Heavy Atom Count10
Formal Charge0
Complexity116.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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