L-2-Aminobutyric acid hydrochloride
- CAS No.
- 5959-29-5
- Chemical Name:
- L-2-Aminobutyric acid hydrochloride
- Synonyms
- AA3;DL-.alph;H-ABU-OH HCL;H-L-2ABU-OH HCL;HoMoalanine HCl;H-2-Abu-OH x HCl;2-ammoniobutyrate;2-ammoniobutanoate;2-azaniumylbutanoate;HOMOALANINE HYDROCHLORIDE
- CBNumber:
- CB8364049
- Molecular Formula:
- C4H9NO2.ClH
- Molecular Weight:
- 139.58
- MDL Number:
- MFCD02092984
- MOL File:
- 5959-29-5.mol
- MSDS File:
- SDS
| storage temp. | Inert atmosphere,Room Temperature |
|---|---|
| solubility | DMSO (Slightly), Methanol (Slightly), Water (Slightly) |
| form | Solid |
| color | White to Off-White |
| optical activity | Consistent with structure |
| CAS DataBase Reference | 5959-29-5(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| HazardClass | IRRITANT |
L-2-Aminobutyric acid hydrochloride price More Price(37)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Usbiological | 465341 | S-2-Aminobutanoic Acid Hydrochloride | 5959-29-5 | 5g | $418 | 2026-06-03 | Buy |
| Usbiological | 465341 | S-2-Aminobutanoic Acid Hydrochloride | 5959-29-5 | 50g | $1890 | 2026-06-03 | Buy |
| TRC | TRC-A602935-5G | (S)-2-Aminobutanoic Acid Hydrochloride | 5959-29-5 | 5g | $179 | 2026-06-03 | Buy |
| TRC | TRC-A602935-50G | (S)-2-Aminobutanoic Acid Hydrochloride | 5959-29-5 | 50g | $1383 | 2026-06-03 | Buy |
| AstaTech | 25309 | HOMOALANINE HCL 97% | 5959-29-5 | 5G | $96 | 2026-04-30 | Buy |
L-2-Aminobutyric acid hydrochloride Chemical Properties, Uses, Production
Uses
(S)-2-Aminobutanoic Acid Hydrochloride is an intermediate in the synthesis of Levetiracetam (L331500), which is used as an anticonvulsant.
Synthesis
34047-84-2
5959-29-5
The general procedure for the synthesis of L-2-aminobutyric acid hydrochloride from the compound (CAS: 34047-84-2) was as follows: in step 3, 186 mL of freshly prepared aqueous hydrochloric acid solution was added to a 500 mL three-necked flask, followed by the resulting product (0.14 mol, 31.0 g). The mixture was heated to reflux and the solid was observed to gradually dissolve and become clarified. The reaction was monitored by TLC (unfolding solvent ratio chloroform:methanol:triethylamine = 6:4:1) until the raw material point disappeared completely. Upon completion of the reaction, concentration was carried out under reduced pressure, followed by pulping with the addition of ethyl acetate, at which point a large amount of white solid precipitated. The solids were collected by filtration and the filter cake was washed three times with ethyl acetate and then dried under vacuum to give a white solid crude product. The crude product was further purified by recrystallization with 13.4 g of pure ethyl acetate to finally obtain L-2-aminobutyric acid hydrochloride in a yield of 68.6%, a chemical purity of 99.3% and an ee value of 99.4%.
References
[1] Patent: CN105330557, 2016, A. Location in patent: Paragraph 0063; 0064; 0065
L-2-Aminobutyric acid hydrochloride Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Wuhan Chemwish Technology Co., Ltd | 86-027-67849912 | sales@chemwish.com | China | 35884 | 56 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| Pure Chemistry Scientific Inc. | 001-857-928-2050 or 1-888-588-9418 | sales@chemreagents.com | United States | 10174 | 62 |
| Nanjing Chemlin Chemical Co., Ltd | 025-83697070 13770331960 | info@chemlin.com.cn | China | 16305 | 64 |
| Aemon Chemical | 0086-755-86198205 | acinfo@aemonchem.com | China | 1928 | 57 |
| Nanjing Rate Biochemicals CO., LTD. | +86-(0)25-84931986,(0)18951962398 | China | 70 | 62 | |
| Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. | 025-66113011 13913916777 | cfzhang@aikonchem.com | China | 19902 | 55 |
| Cato Research Chemicals Inc. | 020-81960175 | min.he@cato-chem.com | China | 1949 | 55 |
View Latest Price from L-2-Aminobutyric acid hydrochloride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-09-17 | L-2-Aminobutyric acid hydrochloride
5959-29-5
|
1KG | 99%min | 500kg | WUHAN FORTUNA CHEMICAL CO., LTD | ||
![]() |
2019-09-17 | L-2-Aminobutyric acid hydrochloride
5959-29-5
|
$7.00 | 1g | 99% | Career Henan Chemical Co | ||
![]() |
2019-09-17 | L-2-Aminobutyric acid hydrochloride
5959-29-5
|
$7.00 | 1g | 99% | Career Henan Chemical Co |
-

- L-2-Aminobutyric acid hydrochloride
5959-29-5
- $0.00
- 99%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- L-2-Aminobutyric acid hydrochloride
5959-29-5
- $7.00
- 99%
- Career Henan Chemical Co
-

- L-2-Aminobutyric acid hydrochloride
5959-29-5
- $7.00
- 99%
- Career Henan Chemical Co
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