1758-80-1

Basic information

• Product Name: L-DAB HBR
• Synonyms: L-2,4-DIAMINOBUTYRIC ACID HYDROBROMIDE;L-DAB HBR;L-DAB HYDROBROMIDE;L-Dab•L-2,4-Diaminobutanoate;H-DabHBr;(S)-2,4-Diaminobutyric acid;L-DABA
• CAS NO: 1758-80-1
• Molecular Formula: C₄H₁₀N₂O₂
• Molecular Weight: 199.05
• EINECS: 206-166-2
• Product Categories: Unusual Amino Acids;Amino hydrochloride
• Mol File: 1758-80-1.mol
• Article Data: 23

Chemical Properties

• Melting Point: 216-218 °C
• Boiling Point: 320.986 °C at 760 mmHg
• Flash Point: 147.927 °C
• Appearance: /
• Density: 1.219 g/cm³
• Vapor Pressure: 6.36E-05mmHg at 25°C
• Refractive Index: 1.513
• Storage Temp.: 2-8°C(protect from light)
• PKA: 2.00±0.10(Predicted)
• CAS DataBase Reference: L-DAB HBR(CAS DataBase Reference)
• NIST Chemistry Reference: L-DAB HBR(1758-80-1)
• EPA Substance Registry System: L-DAB HBR(1758-80-1)

Safety Data

• Hazardous Substances Data: 1758-80-1(Hazardous Substances Data)

Usage

Definition

ChEBI: A 2,4-diaminobutyric acid that has S-configuration.

InChI:InChI=1/C4H10N2O2/c5-2-1-3(6)4(7)8/h3H,1-2,5-6H2,(H,7,8)/t3-/m0/s1

Upstream product

• 102554-90-5 Pht-D/L-Dab(Pht)-OH 
• 113719-16-7 <2,6-bis(1,1-dimethylethyl)-4-methoxyphenyl>-2,4-bis(acetamido)butanoat 
• 942518-29-8 (S)-2-amino-4-azidobutanoic acid hydrochloride 
• 62234-40-6 (2S)-2-{[(benzyloxy)carbonyl]amino}-4-(dimethylamino)butanoic acid 
• 25691-37-6 (2S)-4-amino-2-[(tert-butoxycarbonyl)amino]butanoic acid 
• 56-85-9 L-glutamine 
• 1369429-43-5 cupriachelin 
• 56-86-0 L-glutamic acid 
• 67-66-3 chloroform 
• 7664-93-9 sulfuric acid 
• 7664-41-7 ammonia 
• 157998-96-4 azoxybacilin 
• 7554-88-3 L-α-N-oxalyl-α,γ-diaminobutyric acid 
• 4510-09-2 N-benzyloxycarbonyl-L-glutamic acid-5-hydrazide 

Downstream Products

• 3938-83-8 (S)-4-amino-2-hydroxybutanoic acid 
• 15647-32-2 N^γ-benzoyl-L-diaminobutyric acid 
• 7729-30-8 (R)-azetidine-2-carboxylic acid 
• 10270-94-7 4--L-2,4-diaminobutyric acid 
• 295321-39-0 (S)-2,4-Bis-((S)-2-tert-butoxycarbonylamino-3-hydroxy-3-phenyl-propionylamino)-butyric acid 
• 295321-40-3 (S)-2,4-Bis-[(S)-2-tert-butoxycarbonylamino-3-(4-nitro-phenyl)-propionylamino]-butyric acid 
• 2130-77-0 (S)-2-Amino-4-benzyloxycarbonylamino-butyric acid 
• 62234-40-6 (2S)-2-{[(benzyloxy)carbonyl]amino}-4-(dimethylamino)butanoic acid 
• 87394-05-6 2,4-bis-benzoylamino-butyric acid 
• 40099-43-2 (S)-2,4-bis-(2,4-dinitro-anilino)-butyric acid 
• 25691-37-6 (2S)-4-amino-2-[(tert-butoxycarbonyl)amino]butanoic acid 
• 74509-70-9 γ-DNP-L-2,4-DAB 
• 3350-20-7 (2S)-4-(benzyloxycarbonyl)amino-2-(tert-butoxycarbonyl)aminobutyric acid 
• 2483-65-0 3-amino-pyrrolidin-2-one 

Relevant articles and documents

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Azoxybacilin, a novel antifungal agent produced by Bacillus cereus NR 2991. Production, isolation and structure elucidation

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Preparation method of L-2,4-diaminobutyrate hydrochloride

The invention belongs to the technical field of organic chemistry, and discloses a preparation method of L-2,4-diaminobutyrate hydrochloride. The method includes the following steps that S1, L-glutamine is subjected to Boc protection under an alkaline condition to obtain a N-BOC-L-glutamine aqueous solution; S2, a saturated sodium hypochlorite solution is dropwise added into the N-Boc-L-glutamineaqueous solution obtained in the S1 for a degradation reaction, and a L-2-N-Boc-4-aminobutyric acid crude product solution is obtained; S3, the L-2-N-Boc-4-aminobutyric acid crude product solution iscondensed, the pH is adjusted with 2N hydrochloric acid, salt is removed with cation exchange resin, dilute ammonia water is used as an elution agent for elution, the eluent is condensed, concentratedhydrochloric acid is added for adjusting the pH of a concentrated solution, absolute ethyl alcohol is added, and after crystallization, filtering and drying, the L-2,4-diaminobutyrate hydrochloride is obtained. The method has the advantages that the synthetic route is short, operation is simple, three wastes pollution is less, the yield is high and the cost is low, and the method is an ideal scheme for industrial scale-up production.

COMPOSITIONS AND METHODS FOR THE TREATMENT OF BACTERIAL INFECTIONS

Compositions and methods for the treatment of bacterial infections include compounds containing dimers of cyclic heptapeptides. In particular, compounds can be used in the treatment of bacterial infections caused by Gram-negative bacteria.