Application
ChemicalBook > CAS DataBase List > 4-BROMOISATIN

4-BROMOISATIN

Application
Product Name
4-BROMOISATIN
CAS No.
20780-72-7
Chemical Name
4-BROMOISATIN
Synonyms
4-BROM;4-Broisatin;4-BROMOISATIN;4-Bromoisatin 98%;BUTTPARK 50\07-93;4-Bromoisatin >4- broMoindigo carMine;Fampridine Impurity 25;4-BROMOINDOLE-2,3-DIONE;4-BROMOINDOLINE-2,3-DIONE
CBNumber
CB1301591
Molecular Formula
C8H4BrNO2
Formula Weight
226.03
MOL File
20780-72-7.mol
More
Less

4-BROMOISATIN Property

Melting point:
253-256
Density 
1.826±0.06 g/cm3(Predicted)
storage temp. 
Sealed in dry,Room Temperature
solubility 
soluble in Dimethylformamide
form 
powder to crystal
pka
8.73±0.20(Predicted)
color 
Light yellow to Brown
InChI
InChI=1S/C8H4BrNO2/c9-4-2-1-3-5-6(4)7(11)8(12)10-5/h1-3H,(H,10,11,12)
InChIKey
ITRAKBJPMLKWIW-UHFFFAOYSA-N
SMILES
N1C2=C(C(Br)=CC=C2)C(=O)C1=O
CAS DataBase Reference
20780-72-7(CAS DataBase Reference)
More
Less

Safety

Hazard Codes 
Xi
HazardClass 
IRRITANT
HS Code 
2933998090
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P501Dispose of contents/container to..…

More
Less

N-Bromosuccinimide Price

TCI Chemical
Product number
B2423
Product name
4-Bromoisatin
Purity
>98.0%(GC)(T)
Packaging
5g
Price
$41
Updated
2025/07/31
TCI Chemical
Product number
B2423
Product name
4-Bromoisatin
Purity
>98.0%(GC)(T)
Packaging
25g
Price
$116
Updated
2025/07/31
TRC
Product number
B685523
Product name
4-Bromoisatin
Packaging
2.5g
Price
$75
Updated
2021/12/16
Chem-Impex
Product number
44526
Product name
4-Bromoisatin,≥98%(GC)
Purity
≥98%(GC)
Packaging
5G
Price
$34.26
Updated
2021/12/16
AK Scientific
Product number
J98505
Product name
4-Bromo-1H-indole-2,3-dione
Packaging
100g
Price
$130
Updated
2021/12/16
More
Less

4-BROMOISATIN Chemical Properties,Usage,Production

Application

4-Bromoindigo is an organic bromide that can be used as an intermediate in pharmaceutical synthesis.

Definition

ChEBI: 4-Bromoisatin is a member of indoles. It has a role as an anticoronaviral agent.

Synthesis

65971-74-6

6326-79-0

20780-72-7

The general procedure for the synthesis of 6-bromodihydroindole-2,3-diones and 4-bromoindoline-2,3-diones using 2-hydroxyimino-N-(3-bromophenyl)-acetamide as starting material is as follows: 1. to a solution of hydrogen chloride (50.0 g, 0.247 mol) in water (237 mL) was sequentially added a mixture of anhydrous sodium sulfate (69.0 g, 0.486 mol) and 3-bromoaniline (40.0 g, 0.233 mol) in 37% hydrochloric acid (25 mL). 2. Water (632 mL) was added slowly with vigorous stirring. After addition, the reaction mixture was heated to reflux for 10 minutes and then cooled to room temperature. 3. The precipitate formed was collected by filtration, washed with water (3 x 100 mL) and dried under vacuum to give crude isonitrosoacetanilide. 4. The crude product was added in batches to rapidly stirred concentrated sulfuric acid (790 mL), with the rate of addition controlled to maintain the reaction temperature between 50 and 70 °C. The reaction was carried out in a controlled manner. 5. The reaction mixture was heated to 80°C, held for 20 minutes, and then cooled to room temperature. 6. The cooled mixture was poured into crushed ice (about 320 g) and allowed to stand for 1 hour. 7. The orange precipitate was collected by filtration, washed with water and dried to give a mixture of 4-bromoindigo (K-98) and 6-bromoindigo (K-99) (40 g, 83% yield).

References

[1] Patent: WO2006/44415, 2006, A2. Location in patent: Page/Page column 118
[2] Synthetic Communications, 2010, vol. 40, # 21, p. 3125 - 3134
[3] Journal of Medicinal Chemistry, 2004, vol. 47, # 4, p. 935 - 946
[4] Journal of Medicinal Chemistry, 2001, vol. 44, # 26, p. 4641 - 4649
[5] Journal of Medicinal Chemistry, 2010, vol. 53, # 1, p. 18 - 36

4-BROMOISATIN Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

4-BROMOISATIN Suppliers

Americas 1 Belgium 1 China 185 Europe 1 India 9 Japan 4 Ukraine 1 United Kingdom 12 United States 34 Global 248
Shanghai Kaisai Chemical Co., Ltd
Tel
021-33516722 13701817765
Fax
021-33516776
Email
kaisaichem@163.com
Country
China
ProdList
4610
Advantage
58
Hefei Lbao Physical & Chemical Science Co.,Ltd
Tel
+1-5184799099 +86-13083005206
Email
18755112432@163.com
Country
China
ProdList
72
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
Advantage
56
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Country
China
ProdList
18207
Advantage
66
Beijing Ouhe Technology Co., Ltd
Tel
010-010-82967028 13522913783
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12000
Advantage
60
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
9976
Advantage
60
Accela ChemBio Co.,Ltd.
Tel
021-50795510 4000665055
Fax
021-50795055
Email
sales@accelachem.com
Country
China
ProdList
11035
Advantage
64
Shanghai Paulshine Chemical Co., Ltd.
Tel
+86-021-37788663
Fax
+86-021-37788663
Country
China
ProdList
186
Advantage
64
Shanghai Harvest Chemical Industrial Co., Ltd.
Tel
021-31038972,31038973 17321035817
Fax
+86-21-51385350
Email
sales@harvest-chem.com
Country
China
ProdList
2816
Advantage
64
Nanjing Chemlin Chemical Co., Ltd
Tel
025-83697070
Fax
+86-25-83453306
Email
info@chemlin.com.cn
Country
China
ProdList
16077
Advantage
64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42934
Advantage
64
Beijing Isomersyn Technology CO;LTD
Tel
010-82954736 13391601435
Email
sales@isomersyn.com
Country
China
ProdList
3295
Advantage
57
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18729
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11705
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
Shanghai Sunway Pharmaceutical Technology Co., Ltd
Tel
18270980682
Fax
021 51613951
Email
mlcheng@sunwaypharm.cn
Country
China
ProdList
8669
Advantage
57
Nanjing Vital Chemical Co., Ltd.
Tel
Please Send Email 18652950785
Fax
025-87193546
Email
chemweiao@163.com
Country
China
ProdList
4378
Advantage
65
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11707
Advantage
57
Hangzhou Yuhao Chemical Technology Co., Ltd
Tel
0571-82693216
Fax
+86-571-82880190
Email
info@yuhaochemical.com
Country
China
ProdList
6387
Advantage
52
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
Shanghai civi chemical technology co.,Ltd
Tel
86-21-34053660
Fax
86-21-34053661
Email
sale@labgogo.com
Country
China
ProdList
9865
Advantage
52
Shanghai Topbiochem Technology Co., Ltd
Tel
+86-21-60341587
Fax
+86-21-61294319
Email
sales@topbiochem.com
Country
China
ProdList
6175
Advantage
58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
Tel
025-66113011 17798518460
Fax
(1)02557626880
Email
cfzhang@aikonchem.com
Country
China
ProdList
19913
Advantage
55
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22514
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-6206333 13167063860
Fax
021-50323701
Email
anhua.mao@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
Cantotech Chemicals, Ltd.
Tel
86-0755-86635001
Fax
86-0755-22642228
Email
cantotech@126.com
Country
China
ProdList
4566
Advantage
55
Shanghai Yolne Chemical Co., Ltd.
Tel
021-62960152
Fax
021-52212593
Email
934678158@qq.com
Country
China
ProdList
9899
Advantage
55
Chengdu AstaTech Trading Co., Ltd./AstaTech (Chengdu) Pharma. Co., Ltd.
Tel
+86-28-85122536 85324413
Fax
+86-28-85326443
Email
market@astatech.cn
Country
China
ProdList
8026
Advantage
55
Wuxi Zhangkun Biochemical Technology Co., Ltd.
Tel
+86 0510-85629785
Fax
+86 0510-85625359
Country
China
ProdList
2327
Advantage
58
Amatek Scientific Co. Ltd.
Tel
0512-56316828 4008675858
Fax
+86-512-56316826
Email
sales@amateksci.com
Country
China
ProdList
9874
Advantage
55
Shanghai JONLN Reagent Co., Ltd.
Tel
400-0066400 13621662912
Fax
021-55660885
Email
422131432@qq.com
Country
China
ProdList
9979
Advantage
55
Bide Pharmatech Ltd.
Tel
400-164-7117 13681763483
Fax
+86-21-61629029
Email
product02@bidepharm.com
Country
China
ProdList
39966
Advantage
60
Zhengzhou ALFA Chemical Co., Ltd.
Tel
0371-53732842 15981811963
Fax
0371-86239377
Email
1758257485@qq.com
Country
China
ProdList
950
Advantage
56
Zhengzhou HongSheng Pharmaceutical Co., Ltd.
Tel
0371-0371-13526885213 15637198702
Fax
0371-63709726
Email
hsyykjchem@163.com
Country
China
ProdList
3853
Advantage
58
Wuxi Zhongkun Biochemical Technology Co., Ltd.
Tel
0510-85629785 18013409632
Fax
051085625359
Email
sales@reading-chemicals.com
Country
China
ProdList
15178
Advantage
58
Changzhou Qinuo Chemical Co., Ltd.Co., Ltd.
Tel
0519-0519-83812535
Email
sales@qinuochem.com
Country
China
ProdList
287
Advantage
60
Credit-Chem Co., Ltd.
Tel
400-821-5857 021-64326257
Fax
021-64393586 QQ;2798200800
Email
credit-chem@foxmail.com
Country
China
ProdList
5219
Advantage
58
Shanghai YuLue Chemical Co., Ltd.
Tel
021-60345187 13671753212
Fax
021-34702061
Email
lzz841106@aliyun.com
Country
China
ProdList
10263
Advantage
55
SHANGHAI BANGCHENG CHEMICAL Co.,Ltd.
Tel
021-69106960 13701823733
Fax
021-69106780
Email
13701823733@163.com
Country
China
ProdList
4641
Advantage
60
Shanghai Song Yuan Chemical Technology Co., Ltd.
Tel
010-1234567 18521000990
Fax
86-021-33275113
Email
sonyuanchemical@163.com
Country
China
ProdList
6479
Advantage
50
Beijing Holiyang Chemical Co. Ltd.
Tel
13718199399
Fax
QQ : 206661479
Email
holiyangchem@163.com
Country
China
ProdList
3280
Advantage
56
Shanghai YouPeng Chemical Co. Ltd.
Tel
021-69005955 13701776567
Fax
021-69005775
Email
youpengchem@163.com
Country
China
ProdList
4161
Advantage
56
Sichuan Hainuowei Technology Co. Ltd.
Tel
13708085536 13708085536
Fax
QQ : 121102042
Email
hanovichem@163.com
Country
China
ProdList
3282
Advantage
56
Shanghai TongYuan Chemical Co., Ltd.
Tel
021-021-69182866 13701855675
Fax
021-69182022
Email
tongyuanchem@126.com
Country
China
ProdList
4193
Advantage
58
Credit Asia Chemical Co., Ltd.
Tel
+86 (21) 61124340
Fax
+86 (21) 6129-4103
Country
China
ProdList
9756
Advantage
58
Shanghai LanRun Chemical Co., Ltd.
Tel
021-69515658 ; 69515628 13701998368
Fax
021-69515998
Email
longrunchem@163.com
Country
China
ProdList
3786
Advantage
50
More
Less

View Lastest Price from 4-BROMOISATIN manufacturers

Hefei Lbao Physical & Chemical Science Co.,Ltd
Product
4-Bromoisatin 20780-72-7
Price
US $0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
Customise
Release date
2025-08-16
Henan Fengda Chemical Co., Ltd
Product
4-BROMOISATIN 20780-72-7
Price
US $36.00-1.50/kg
Min. Order
1kg
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-04-09
Zhuozhou Wenxi import and Export Co., Ltd
Product
4-BROMOISATIN 20780-72-7
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11

20780-72-7, 4-BROMOISATINRelated Search:

4-BROMO-5-FLUORO-7-METHYL ISATIN 4-BROMOISATIN 4-BROMO-7-METHYLISATIN 4-Bromo-5-methyl-2,3-indolinedione 6-Bromoisatinic anhydride 7-Bromoisatin 97% 5-BROMOISATIN, TECH., 90%,BromoIsatin,5-Bromoisatin,tech.90%,5-BROMOISATIN, 98+%,5-Bromoisatin, 90+%,5-BROMOISATIN,5-BROMOISATIN HEMIHYDRATE 6-Bromoisatin 97%,6-BROMOISATIN,BROMOISATIN(6-) Isatin 4-Bromoindole 4,6-DIBROMO ISATIN 4-BROMO-5-CHLOROINDOLINE-2,3-DIONE 4-Bromo-7-methoxyisatin 4-bromo-1-(2-bromoethyl)-2,3-dihydro-1H-indole-2,3-dione (4-bromo-2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetic acid 1-(3-amino-2-hydroxypropyl)-4-bromo-2,3-dihydro-1H-indole-2,3-dione 2-(4-bromo-2,3-dioxo-2,3-dihydro-1H-indol-1-yl)-N-methylacetamide N-BOC-4-BROMOISATIN

  • 4-BROMO-1H-INDOLE-2,3-DIONE
  • 4-BROMOINDOLE-2,3-DIONE
  • 4-BROMOINDOLINE-2,3-DIONE
  • 4-BROMOISATIN
  • BUTTPARK 50\07-93
  • 4-Bromoisatin 98%
  • 4-BROMO-2,3-INDOLINEDIONE 97.0%(MIN)(HPLC)
  • 4-bromo-1H-indole-2,3-dione(SALTDATA: FREE)
  • 4-broMo-2,3-dihydro-1H-indole-2,3-dione
  • 4-Bromo-1H-indole-2,3-dione, 4-Bromoindolin-2,3-dione
  • 4-Broisatin
  • 4-BROM
  • 4-BroMo isatin 4-BroMo indole-2,3-dione
  • 4- broMoindigo carMine
  • 4-Bromo-2,3-Indolinedione
  • 4-Bromo-1H-indol-2,3-dione
  • 4-Bromoisatin &gt
  • 1H-Indole-2,3-dione, 4-bromo-
  • 3-Isoxazolecarboxaldehyde,10-methyl-
  • Fampridine Impurity 25
  • 20780-72-7
  • Simple Indoles
  • Indoles
  • Halides
  • Indoline & Oxindole
  • Indoles
  • Simple Indoles
  • Fused Ring Systems
  • K00001