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8-Bromo-4-chromanone

8-Bromo-4-chromanone Structure
8-Bromo-4-chromanone structure
CAS No.
204377-88-8
Chemical Name:
8-Bromo-4-chromanone
Synonyms
8-Bromo-4-chromanone;8-bromo-chroman-4-one;8-BroMo-4-chroManone 97%;8-broMo-2,3-dihydrochroMen-4-one;8-bromo-2,3-dihydro-4H-chromen-4-one;8-BROMO-2,3-DIHYDRO-1-BENZOPYRAN-4-ONE;8-broMo-3,4-dihydro-2H-1-benzopyran-4-one;8-Bromo-2,3-dihydro-4H-1-benzopyran-4-one;4H-1-Benzopyran-4-one, 8-bromo-2,3-dihydro-
CBNumber:
CB7947485
Molecular Formula:
C9H7BrO2
Molecular Weight:
227.05
MDL Number:
MFCD09744046
MOL File:
204377-88-8.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:46
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8-Bromo-4-chromanone Properties

Boiling point 339℃
Density 1.621
Flash point 159℃
storage temp. Sealed in dry,Room Temperature
Appearance White to light yellow Solid

8-Bromo-4-chromanone price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Synthonix B61125 8-Bromochroman-4-one >98% 204377-88-8 1g $25 2026-05-06 Buy
Synthonix B61125 8-Bromochroman-4-one >98% 204377-88-8 5g $60 2026-05-06 Buy
aablocks AA0029CZ 8-Bromochroman-4-one 95% 204377-88-8 100mg $8 2026-05-28 Buy
aablocks AA0029CZ 8-Bromochroman-4-one 97% 204377-88-8 250mg $9 2026-05-28 Buy
aablocks AA0029CZ 8-Bromochroman-4-one 95% 204377-88-8 1g $12 2026-05-28 Buy
Product number Packaging Price Buy
B61125 1g $25 Buy
B61125 5g $60 Buy
AA0029CZ 100mg $8 Buy
AA0029CZ 250mg $9 Buy
AA0029CZ 1g $12 Buy

8-Bromo-4-chromanone Chemical Properties,Uses,Production

Uses

8-Bromo-4-dihydrochromone is an important intermediate, but its synthesis yield is low, it is difficult to synthesize, and its selling price is more than 20 times that of the similar product 6-bromo-3-dihydrochromone.

Synthesis

Benzene, 1-bromo-2-[(3-chloro-2-propyn-1-yl)oxy]-

1403387-58-5

8-Bromo-4-chromanone

204377-88-8

Step 3: Synthesis of 8-bromo-benzotetrahydropyran-4-one (P34c) Compound P34b (2.0 g, 8.15 mmol) was dissolved in ethylene glycol (20 mL) and heated to reflux for 4 hours. After completion of the reaction, the reaction mixture was cooled, poured into water and extracted twice with ether (Et2O). The organic layers were combined and washed sequentially with 1 M aqueous sodium hydroxide (NaOH) and saturated aqueous ammonium bicarbonate (NH4HCO3). The organic layers were dried over anhydrous sodium sulfate (Na2SO4), filtered and concentrated, and finally purified by column chromatography (eluent: petroleum ether/ethyl acetate = 50/1) to afford the target compound P34c (0.88 g, 48% yield) as a yellow solid.

References

[1] Patent: WO2012/139775, 2012, A1. Location in patent: Page/Page column 60-61

8-Bromo-4-chromanone Preparation Products And Raw materials

Raw materials

Benzene, 1-bromo-2-[(3-chloro-2-propyn-1-yl)oxy]-

Preparation Products

8-Bromo-4-chromanone Suppliers

Global( 104)Suppliers
Supplier Tel Email Country ProdList Advantage
PharmaBlock Sciences (Nanjing),Inc. 025-86918202 4000255188 sales@pharmablock.com China 5000 55
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
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
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Shanghai Litong Chemical Technology Co.,Ltd. 13598610367 0373-7129549 2468833170@qq.com China 932 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65
SynAsst Chemical. 021-60343070 China 12731 55
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Zhengzhou ALFA Chemical Co., Ltd. 0371-53732842 15981811963 1758257485@qq.com China 949 56
Supplier Advantage
PharmaBlock Sciences (Nanjing),Inc. 55
Capot Chemical Co., Ltd 66
Adamas Reagent, Ltd. 59
Shanghai Hanhong Scientific Co.,Ltd. 64
Shandong Xiya Chemical Co., Ltd 57
Shanghai Litong Chemical Technology Co.,Ltd. 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 65
SynAsst Chemical. 55
Bide Pharmatech Ltd. 60
Zhengzhou ALFA Chemical Co., Ltd. 56

View Lastest Price from 8-Bromo-4-chromanone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
8-Bromochroman-4-one pictures 2026-09-11 8-Bromochroman-4-one
204377-88-8
 $89.00-296.00 5g 0.99 25kg Shanghai UCHEM Inc.
8-Bromo-4-chromanone pictures 2022-01-04 8-Bromo-4-chromanone
204377-88-8
 1g 98%minHPLC 50kgs/month Shanghai Rlavie Technology Co ltd
8-Bromo-4-chromanone pictures 2020-01-03 8-Bromo-4-chromanone
204377-88-8
 $1.00 1KG 95-99% 1ton Career Henan Chemical Co

8-Bromo-4-chromanone Spectrum

8-Bromo-4-chromanone(204377-88-8)1HNMR8-Bromo-4-chromanone(204377-88-8)1HNMR

204377-88-8(8-Bromo-4-chromanone)Related Search:

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8-Bromo-4-chromanone

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8-Bromo-4-chromanone 8-Bromo-2,3-dihydro-4H-1-benzopyran-4-one 8-broMo-3,4-dihydro-2H-1-benzopyran-4-one 8-BroMo-4-chroManone 97% 8-bromo-chroman-4-one 8-broMo-2,3-dihydrochroMen-4-one 8-bromo-2,3-dihydro-4H-chromen-4-one 8-BROMO-2,3-DIHYDRO-1-BENZOPYRAN-4-ONE 4H-1-Benzopyran-4-one, 8-bromo-2,3-dihydro- 204377-88-8