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ChemicalBook >> CAS DataBase List >>5-Chloro-3,1-benzoxazin-2,4-dione

5-Chloro-3,1-benzoxazin-2,4-dione

5-Chloro-3,1-benzoxazin-2,4-dione Structure
5-Chloro-3,1-benzoxazin-2,4-dione structure
CAS No.
20829-96-3
Chemical Name:
5-Chloro-3,1-benzoxazin-2,4-dione
Synonyms
LAQU-005;5-Chloro-3,1-benzoxazin-2,4-dione;5-chloro-1H-3,1-benzoxazine-2,4-dione;5-chloro-2H-3,1-benzoxazine-2,4(1H)-dione;5-CHLORO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE;2H-3,1-Benzoxazine-2,4(1H)-dione, 5-chloro-;5-chloro-1H-benzenebenzo[d][1,3]azine-2,4-dione
CBNumber:
CB7355596
Molecular Formula:
C8H4ClNO3
Molecular Weight:
197.58
MDL Number:
MFCD09032504
MOL File:
20829-96-3.mol
MSDS File:
SDS
Last updated:2026-09-12 18:54:55
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5-Chloro-3,1-benzoxazin-2,4-dione Properties

Melting point 272.5-272.9 °C
Density 1.540±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka 10.27±0.20(Predicted)
form lumpy powder
color Faint pink

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H317-H319
Precautionary statements  P280-P305+P351+P338
HS Code  2934999090

5-Chloro-3,1-benzoxazin-2,4-dione price More Price(43)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific OR400007 6-Chloroisatoic anhydride ≥95% 20829-96-3 1g $47 2026-06-04 Buy
Apolloscientific OR400007 6-Chloroisatoic anhydride ≥95% 20829-96-3 5g $107 2026-06-04 Buy
Apolloscientific OR400007 6-Chloroisatoic anhydride ≥95% 20829-96-3 25g $421 2026-06-04 Buy
Matrix Scientific 119935 5-Chloro-1H-benzo[d][1,3]oxazine-2,4-dione 20829-96-3 1.00g $162 2026-05-18 Buy
Matrix Scientific 119935 5-Chloro-1H-benzo[d][1,3]oxazine-2,4-dione 20829-96-3 5.00g $504 2026-05-18 Buy
Product number Packaging Price Buy
OR400007 1g $47 Buy
OR400007 5g $107 Buy
OR400007 25g $421 Buy
119935 1.00g $162 Buy
119935 5.00g $504 Buy

5-Chloro-3,1-benzoxazin-2,4-dione Chemical Properties, Uses, Production

Synthesis

PHOSGENE

75-44-5

2-Amino-6-chlorobenzoic acid

2148-56-3

5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE

20829-96-3

In a 250 mL round-bottomed flask under nitrogen protection, 2-amino-6-chlorobenzoic acid (11.69 g, 68 mmol) was dissolved in 100 mL of 1,4-dioxane. After cooling the reaction system to 0°C, phosgene (36 mL, 68 mmol) was slowly added through a dropping funnel. The reaction mixture was stirred at 0°C for 24 h, followed by natural warming to 23°C (room temperature). Upon completion of the reaction, the resulting white solid product was collected by filtration and washed sequentially with 1,4-dioxane and ether to afford 5-chloro-1H-benzo[d][1,3]oxazine-2,4-dione (12.5 g, 93% yield).

References

[1] Organic Process Research and Development, 2007, vol. 11, # 4, p. 674 - 680
[2] Patent: US2007/249605, 2007, A1. Location in patent: Page/Page column 8
[3] Patent: US2004/162285, 2004, A1
[4] Patent: US2004/87577, 2004, A1. Location in patent: Page 65
[5] Patent: US2004/167123, 2004, A1. Location in patent: Page/Page column 98

5-Chloro-3,1-benzoxazin-2,4-dione synthesis

75-44-5
2148-56-3
20829-96-3
Synthesis of 5-Chloro-3,1-benzoxazin-2,4-dione from Phosgene and 2-Amino-6-chlorobenzoic acid

5-Chloro-3,1-benzoxazin-2,4-dione Preparation Products And Raw materials

Raw materials

Boc-2-amino-6-chlorobenzoic acid Triphosgene Phosgene 2-Amino-6-chlorobenzoic acid Acetyl chloride

Preparation Products

5-Chloro-3,1-benzoxazin-2,4-dione Suppliers

Global Suppliers ( 78)
Supplier Tel Email Country ProdList Advantage
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Shanghai Cuisen Pharmaceutical Technology Co., Ltd. 13472757003 yongnan.wang@cendrix.cn China 971 65
Shanghai Sphchem Co., Ltd. 021-56491756 13512199871 2819742715@qq.com China 3994 55
Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10265 58
Haoyuan Chemexpress Co., Ltd. 021-58950125 info@chemexpress.com China 7545 61
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
ShangHai D&B Biological Science and Technology Co.Ltd 400-008-9730,021-54359730 400-008-9730 info@chemxyz.com China 3642 60
Shanghai Balmxy Pharmaceutical Co., Ltd 021-24206007 13764915196 sales@balmxy.com China 6959 55
Shanghai ChuangYan Chemical Technology Co., Ltd. 021-11111111 11111111111 546919421@qq.com China 3769 55
Supplier Advantage
Adamas Reagent, Ltd. 59
Shanghai Hanhong Scientific Co.,Ltd. 64
Shanghai Cuisen Pharmaceutical Technology Co., Ltd. 65
Shanghai Sphchem Co., Ltd. 55
Hangzhou Sage Chemical Co., Ltd. 58
Haoyuan Chemexpress Co., Ltd. 61
Bide Pharmatech Ltd. 60
ShangHai D&B Biological Science and Technology Co.Ltd 60
Shanghai Balmxy Pharmaceutical Co., Ltd 55
Shanghai ChuangYan Chemical Technology Co., Ltd. 55

View Latest Price from 5-Chloro-3,1-benzoxazin-2,4-dione manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE pictures 2021-07-16 5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE
20829-96-3
 100g 98% Shanghai kingmorn biotechnology Co.,LTD.
5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE pictures 2021-07-13 5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE
20829-96-3
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE pictures 2021-07-10 5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE
20829-96-3
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd

5-Chloro-3,1-benzoxazin-2,4-dione Spectrum

5-CHLORO-3,1-BENZOXAZIN-2,4-DIONE(20829-96-3)1HNMR

20829-96-3 (5-Chloro-3,1-benzoxazin-2,4-dione) Related Search:

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5-Chloro-1-methyl-1H-benzo[d][1,3]oxazine-2,4-dione 5-Chloro-3,1-benzoxazin-2,4-dione

1of4

5-CHLORO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE 2H-3,1-Benzoxazine-2,4(1H)-dione, 5-chloro- 5-chloro-2H-3,1-benzoxazine-2,4(1H)-dione 5-chloro-1H-3,1-benzoxazine-2,4-dione LAQU-005 5-chloro-1H-benzenebenzo[d][1,3]azine-2,4-dione 5-Chloro-3,1-benzoxazin-2,4-dione 20829-96-3