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Brivaracetam (alfaR, 4S)-Isomer

Brivaracetam (alfaR, 4S)-Isomer Structure
Brivaracetam (alfaR, 4S)-Isomer structure
CAS No.
357336-99-3
Chemical Name:
Brivaracetam (alfaR, 4S)-Isomer
Synonyms
(R)-2-((S)-2-oxo-4-propylpyrrolidin-1-yl)butanamide;Brivaracetam Impurity B;(R.S)-brivaracetam;αR,4S-Brivaracetam;Brivaracetam (alfaR;Buvacitan impurity 21;Brilicatib impurity B;Brivaracetam R,S-Isomer;Brivaracetam Impurity 3;Brivaracetum R,S-Isomer
CBNumber:
CB32741740
Molecular Formula:
C11H20N2O2
Molecular Weight:
212.29
MDL Number:
MOL File:
357336-99-3.mol
Last updated:2026-01-13 11:19:46
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Brivaracetam (alfaR, 4S)-Isomer Properties

Melting point 73 - 76°C
Boiling point 409.3±28.0 °C(Predicted)
Density 1.062±0.06 g/cm3(Predicted)
storage temp. Refrigerator
solubility Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
pka 15.74±0.50(Predicted)
form Solid
color White to Off-White
Major Application pharmaceutical
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

WGK Germany  WGK 3
Storage Class 11 - Combustible Solids

Brivaracetam (alfaR, 4S)-Isomer price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth HPA33699 αR,4S-Brivaracetam 357336-99-3 0.5mg $900 2026-06-04 Buy
Biosynth HPA33699 αR,4S-Brivaracetam 357336-99-3 1mg $900 2026-06-04 Buy
Biosynth HPA33699 αR,4S-Brivaracetam 357336-99-3 2mg $1038.4 2026-06-04 Buy
Biosynth HPA33699 αR,4S-Brivaracetam 357336-99-3 5mg $2336.4 2026-06-04 Buy
Biosynth HPA33699 αR,4S-Brivaracetam 357336-99-3 10mg $2985.4 2026-06-04 Buy
Product number Packaging Price Buy
HPA33699 0.5mg $900 Buy
HPA33699 1mg $900 Buy
HPA33699 2mg $1038.4 Buy
HPA33699 5mg $2336.4 Buy
HPA33699 10mg $2985.4 Buy

Brivaracetam (alfaR, 4S)-Isomer Chemical Properties, Uses, Production

Uses

αR,4S-Brivaracetam acts as a reagent for the preparation of 2-Oxo-1-pyrrolidine derivatives and their anticonvulsants activity. Also an impurity of Brivaracetam (B677645), a 4-n-propyl analog of levetiracetam (L331500), and a racetam derivative with anticonvulsant properties.

Brivaracetam (alfaR, 4S)-Isomer Preparation Products And Raw materials

Raw materials

Preparation Products

Brivaracetam (alfaR, 4S)-Isomer Suppliers

Global Suppliers ( 67)
Supplier Tel Email Country ProdList Advantage
Hubei Molcoo Biotechnology Co., Ltd 18274848843 zhangyu1@molcoo.com China 4817 58
Daicel Chiral Technologies (China)CO.,LTD 021-50460086-9 15921403865 han_yajun@dctc.daicel.com China 7917 65
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5000 50
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Shandong Boluoda Biological Technology Co., Ltd. 0531-68651502 2310993908@qq.com China 3228 58
Shanghai Kewel Chemical Co., Ltd. 021-64609169 18901607656 greensnown@163.com China 9883 50
Chengdu Miracle Pharmaceutical Co., Ltd. 028-86136736 19130631884 sales@mic-pharma.com China 346 56
Shanghai Mixiu Chemical Co., Ltd. 18101936766 eileen@shmychem.com China 349 55
BOC Sciences 16314854226 info@bocsci.com United States 9909 65
Shanghai BLT Biological Pharmaceutical Co., Ltd. 021-20786057 18918495077 3116390381@qq.com China 220 58
Supplier Advantage
Hubei Molcoo Biotechnology Co., Ltd 58
Daicel Chiral Technologies (China)CO.,LTD 65
S.Z. PhyStandard Bio-Tech. Co., Ltd. 50
Quality Control Solutions Ltd. 56
Shandong Boluoda Biological Technology Co., Ltd. 58
Shanghai Kewel Chemical Co., Ltd. 50
Chengdu Miracle Pharmaceutical Co., Ltd. 56
Shanghai Mixiu Chemical Co., Ltd. 55
BOC Sciences 65
Shanghai BLT Biological Pharmaceutical Co., Ltd. 58

View Latest Price from Brivaracetam (alfaR, 4S)-Isomer manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Brivaracetam Impurity D pictures 2026-03-12 Brivaracetam Impurity D
357336-99-3
 10mg 98% 500mg ShenZhen H&D Pharmaceutical Technology Co., LTD

357336-99-3 (Brivaracetam (alfaR, 4S)-Isomer) Related Search:

Dihydro-4-propyl-2(3H)-furanone Brivaracetam (Racemate) Brivaracetam tert-butyl (R)-3-(hydroxymethyl)hexanoate (R)-2-(2-(tert-butoxy)-2-oxoethyl)pentanoic acid
Brivaracetam (alfaR, 4R)-Isomer (4S)-BrivaracetaM (Z)-2-propylhept-2-enal (R)-4-Propyldihydrofuran-2(3H)-one Brivaracetam Impurity 21
Brivaracetam Impurity 9 (R)-N-((S)-1-amino-1-oxobutan-2-yl)-3-(bromomethyl)hexanamide Brivaracetam Impurity 5 (R)-Ethyl 3-(bromomethyl)hexanoate Brivaracetam Impurity 10
Brivaracetam Impurity B Brivaracetam Impurity 11 Brivaracetam Impurity 14

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Brivaracetam (alfaR, 4S)-Isomer 2R-2-[(4S)-2-oxo-4-propylpyrrolidin-1-yl]butanamide Brivaracetam Impurity 3 Boisirtam (alfaR, 4S) isomer 1-Pyrrolidineacetamide, α-ethyl-2-oxo-4-propyl-, (αR,4S)- Brivaracetam (alfaR αR,4S-Brivaracetam (R.S)-brivaracetam (2R,4S)-2-(4-propylpyrrolidin-2-one)butanamide Buvacitan impurity 21 Brivaracetam R,S-Isomer Brivaracetam EP Impurity B (Brivaracetam USP Related Compound B) Brivaracetam impurity B CRS 2R-2-[(4S)-2-oxo-4-propylpyrrolidin-1-yl]butanamid Brivaracetum R,S-Isomer Boussyssin-related substance (R)-2-((S)-2-oxo-4-propylpyrrolidin-1-yl)butanamide Brivaracetam Impurity B Brilicatib impurity B Brivaracetam (Alfa R, 4S)-Isomer (Enantiomer) 357336-99-3