Threonine

C₄H₉NO₃

IUPAC: (2S,3R)-2-Amino-3-hydroxybutanoic acid

CAS: 72-19-5

Overview

Threonine is an essential amino acid important for immune function, gut health, and collagen production. It was the last of the 20 common amino acids to be discovered.

Composition

Element	Symbol	Atoms	Atomic Mass
Hydrogen	H	9	1.0080
Carbon	C	4	12.0110
Nitrogen	N	1	14.0070
Oxygen	O	3	15.9990

Elemental Composition

Hydrogen ×9

7.6%

Carbon ×4

40.3%

Nitrogen ×1

11.8%

Oxygen ×3

40.3%

Uses

• Animal feed additive
• Dietary supplement
• Pharmaceutical

Fun Facts

✦ Discovered in 1936, the last standard amino acid to be identified

Structure

SMILES

CC(C(C(=O)O)N)O

Properties

Type: organic
State: solid
Molar Mass: 119.12 g/mol
Density: 1.3100 g/cm³
Melting Point: 256.0 °C
Solubility: very soluble

Molecular Descriptors

Exact Mass: 119.0582
XLogP: -2.9
TPSA: 83.6 Å²
H-Bond Donors: 3
H-Bond Acceptors: 4
Rotatable Bonds: 2
Heavy Atoms: 8
Complexity: 93.0

Related Compounds

1,2-Dichloroethane

C₂H₄Cl₂

1,3-Butadiene

C₄H₆

1,4-Dioxane

C₄H₈O₂

1-Butanol

C₄H₁₀O

2-Propanol

C₃H₈O

Acetaldehyde

CH₃CHO

Acetamide

C₂H₅NO

Acetic Anhydride

C₄H₆O₃

Acetone

(CH₃)₂CO

Acetonitrile

C₂H₃N

Frequently Asked Questions

What is Threonine?

Threonine (C₄H₉NO₃) is a organic compound with the IUPAC name (2S,3R)-2-Amino-3-hydroxybutanoic acid.

What is the molecular weight of Threonine?

Threonine has a molar mass of 119.12 g/mol.

What state is Threonine at room temperature?

Threonine is a solid at room temperature.

Is Threonine organic or inorganic?

Threonine is classified as an organic compound.

What elements make up Threonine?

Threonine (C₄H₉NO₃) is composed of Hydrogen (H), Carbon (C), Nitrogen (N), Oxygen (O).