1001-13-4

Basic information

• Product Name: Butyric acid, 2-amino-4-sulfo-
• Synonyms: Butyric acid, 2-amino-4-sulfo-;homocysteic acid
• CAS NO: 1001-13-4
• Molecular Formula: C4H9NO5S
• Molecular Weight: 0
• Mol File: 1001-13-4.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Butyric acid, 2-amino-4-sulfo-(CAS DataBase Reference)
• NIST Chemistry Reference: Butyric acid, 2-amino-4-sulfo-(1001-13-4)
• EPA Substance Registry System: Butyric acid, 2-amino-4-sulfo-(1001-13-4)

Safety Data

• Hazardous Substances Data: 1001-13-4(Hazardous Substances Data)

Usage

Definition

ChEBI: A non-proteinogenic alpha-amino acid that is homocysteine in which the thiol group has benn oxidised to the corresponding sulfonic acid.

InChI:InChI=1/C4H9NO5S/c5-3(4(6)7)1-2-11(8,9)10/h3H,1-2,5H2,(H,6,7)(H,8,9,10)

Upstream product

• 63-68-3 L-methionine 
• 6027-15-2 D-homocystine 
• 626-72-2 L-homocystine 
• 462-10-2 DL-homocystine 
• 7732-18-5 water 
• 7726-95-6 bromine 
• 7722-84-1 dihydrogen peroxide 
• 3226-65-1 L-methionine sulfoxide 
• 64-18-6 formic acid 

Downstream Products

• 1623054-96-5 C₃₅H₄₅N₄O₆S⁽¹⁺⁾ 

Relevant articles and documents

Under-flame Reaction of Sulfur-containing Amino Acids by a Hydrogen-Oxygen Flame

Methionine was subjected to a flame-induced reaction in water or in an aqueous formic acid solution by using a hydrogen (50%)-oxygen (50%), hydrogen (87%)-oxygen (13%) and hydrogen diffusion flame. Besides the already-known stepwise oxidation by a hydroxyl radical, the contribution of a hydrogen atom from the flame to the reaction was recognized when the hydrogen-rich mixtures were employed. Homoserine was obtained under all the reaction conditions employed here, and glutamic acid when employing aqueous formic acid as a solvent. A common intermediate, the 3-carboxy-3-aminopropyl radical, appeared to exist in the reaction pathway. A coupling reaction of this radical with a hydrogen atom, hydroxyl radical and hydroxycarbonyl radical afforded 2-aminobutyric acid, homoserine and glutamic acid, respectively. Lanthionine and S-methylcysteine underwent the same reactions. Increasing the hydrogen content of the fuel and adding formic acid to the solvent resulted in retarding the reaction rate. The latter modification of the reaction system also brought about greater stability of the reaction products.

GLUCAGON ANALOGS EXHIBITING ENHANCED SOLUBILITY IN PHYSIOLOGICAL pH BUFFERS

Modified glucagon peptides are disclosed having improved solubility while retaining glucagon agonist activity. The glycogen peptides have been modified by substitution of native amino acids with, and/or addition of, charged amino acids to the carboxy terminus of the peptide. The modified glucagon agonists can be further modified by pegylation, or the addition of a carboxy terminal peptide selected from the group consisting of SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 23, or both to further enhance the solubility of the glucagon agonist analogs.