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ChemicalBook >> CAS DataBase List >>OTAVA-BB 1217676

OTAVA-BB 1217676

CAS No.
120711-81-1
Chemical Name:
OTAVA-BB 1217676
Synonyms
OTAVA-BB 1217676;7-Nitro-3,4-dihydrobenzo[1,4]oxazine;7-Nitro-3,4-dihydro-2H-1,4-benzoxazine;7-Nitro-3,4-dihydro-2H-1,4-benzooxazine;2H-1,4-Benzoxazine, 3,4-dihydro-7-nitro-;7-Nitro-3,4-dihydro-2H-benzo[1,4]oxazine;7-Nitro-3,4-dihydro-2H-1,4-benzoxazine,97%;3,4-Dihydro-7-nitro-2H-benzo[b][1,4]oxazine;7-NITRO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE
CBNumber:
CB22465553
Molecular Formula:
C8H8N2O3
Molecular Weight:
180.16
MDL Number:
MFCD11603433
MOL File:
120711-81-1.mol
MSDS File:
SDS
Last updated:2026-05-28 00:00:28
Product description Number Pack Size Price
7-Nitro-3,4-dihydro-2H-1,4-benzoxazine VBP00107 1g $463
7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% OR904351 100mg $21
7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% OR904351 250mg $24
7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% OR904351 1g $81
7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% OR904351 5g $285

OTAVA-BB 1217676 Properties

Melting point 187-188°
Boiling point 341.6±42.0 °C(Predicted)
Density 1.332±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
pka 0.23±0.20(Predicted)
Appearance Light yellow to yellow Solid
Water Solubility Sparingly soluble in water (0.76 g/L at 25°C).
CAS DataBase Reference 120711-81-1

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)
GHS06
Signal word  Danger
Hazard statements  H301
Precautionary statements  P301+P310
Hazard Codes  T
Risk Statements  25
Safety Statements  45
RIDADR  UN 2811 6.1 / PGIII
HazardClass  IRRITANT
HS Code  2934999090
NFPA 704
1
2 0

OTAVA-BB 1217676 price More Price(47)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich VBP00107 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 120711-81-1 1g $463 2023-06-20 Buy
Apolloscientific OR904351 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% 120711-81-1 100mg $21 2026-06-04 Buy
Apolloscientific OR904351 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% 120711-81-1 250mg $24 2026-06-04 Buy
Apolloscientific OR904351 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% 120711-81-1 1g $81 2026-06-04 Buy
Apolloscientific OR904351 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 97% 120711-81-1 5g $285 2026-06-04 Buy
Product number Packaging Price Buy
VBP00107 1g $463 Buy
OR904351 100mg $21 Buy
OR904351 250mg $24 Buy
OR904351 1g $81 Buy
OR904351 5g $285 Buy

OTAVA-BB 1217676 Chemical Properties,Uses,Production

Uses

7-Nitro-3,4-dihydro-2H-1,4-benzooxazine can be used as pain drugs to prevent and treat chronic pain.

Synthesis

7-NITRO-2H-1,4-BENZOXAZIN-3(4H)-ONE

81721-86-0

OTAVA-BB 1217676

120711-81-1

The general procedure for the synthesis of 7-nitro-3,4-dihydro-2H-1,4-benzisoxazin-3-one from 7-nitro-2H-1,4-benzisoxazin-3-one was as follows: 7-nitro-4H-benzo[1,4]oxazin-3-one (2.00 g, 10.3 mmol) was dissolved in tetrahydrofuran (THF, 10 mL), and borane-THF complex was added subsequently ( 1.0 M solution of THF, 35 mL). The reaction mixture was heated to reflux for 30 min, then cooled to 0 °C and the reaction was quenched with 1 N hydrochloric acid (20 mL). After continued stirring for 30 min, the reaction solution was concentrated to 1/10 of the original volume. the orange solid product was collected by filtration, washed with water and dried under vacuum to afford 7-nitro-3,4-dihydro-2H-1,4-benzisoxazine (1.66 g, 89% yield). The mass spectrum (electrospray positive ion mode) showed m/z 181.1 ([M+H]+) and the mass spectrum (electrospray negative ion mode) showed m/z 179.2 ([M-H]-).1H NMR (400 MHz, DMSO-d6) data were as follows: δ 7.68 (dd, 1H, J = 8.8, 2.6 Hz), 7.53 (s, 1H), 7.47 (d , 1H, J = 2.6 Hz), 6.63 (d, 1H, J = 9.2 Hz), 4.15 (t, 2H, J = 4.4 Hz), 3.44-3.40 (m, 2H).

References

[1] Journal of Medicinal Chemistry, 2007, vol. 50, # 10, p. 2486 - 2496
[2] Patent: WO2006/66174, 2006, A1. Location in patent: Page/Page column 52-53
[3] Patent: US2010/9975, 2010, A1. Location in patent: Page/Page column 35
[4] Journal of the American Chemical Society, 2014, vol. 136, # 38, p. 13277 - 13282
[5] Bioorganic and Medicinal Chemistry, 2013, vol. 21, # 13, p. 3821 - 3830

OTAVA-BB 1217676 Suppliers

Global( 81)Suppliers
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Alchem Pharmtech,Inc.
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Zhejiang J&C Biological Technology Co.,Limited
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Aladdin Scientific
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Suzhou ARTK Medchem Co., Ltd.
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DAYANG CHEM (HANGZHOU) CO.,LTD
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Amadis Chemical Company Limited
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J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Nanjing Chemlin Chemical Co., Ltd 025-83697070 info@chemlin.com.cn China 16305 64

OTAVA-BB 1217676 Spectrum

7-NITRO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE OTAVA-BB 1217676 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine 7-Nitro-3,4-dihydro-2H-1,4-benzooxazine 7-Nitro-3,4-dihydrobenzo[1,4]oxazine 7-Nitro-3,4-dihydro-2H-benzo[1,4]oxazine 2H-1,4-Benzoxazine, 3,4-dihydro-7-nitro- 7-Nitro-3,4-dihydro-2H-1,4-benzoxazine,97% 3,4-Dihydro-7-nitro-2H-benzo[b][1,4]oxazine 120711-81-1
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