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Amino acids and derivatives

D-Allothreonine

Also known as D-allo-Threonine, (2R,3R)-2-amino-3-hydroxybutanoic acid, (R)-Allothreonine

CAS 24830-94-2Formula C4H9NO3Molar mass 119.12 g/molEC 205-645-3
GHS signal word: Warning. Pictograms: Harmful or irritant 12 suppliers listed
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D-Allothreonine chemical structure, C4H9NO3, CAS 24830-94-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
24830-94-2
Formula
C4H9NO3
Molar mass
119.12 g/mol
EC number
205-645-3
HS code
292250
Category
Amino acids and derivatives

What is D-Allothreonine?

Plain description, key identifiers and synonyms

D-allothreonine is the D-enantiomer of allothreonine. It occurs as a component of peptido-lipids in certain bacteria. It has a role as a bacterial metabolite. It is a D-alpha-amino acid and an allothreonine. It is an enantiomer of a L-allothreonine. It is a tautomer of a D-allothreonine zwitterion.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2R,3R)-2-amino-3-hydroxybutanoic acid
CAS number
24830-94-2 CAS number cross-checkedOther or deprecated CAS: 144-98-9, 632-20-2
EC numbers
205-645-3, 246-488-0
Molecular formula
C4H9NO3
UNII
0756UWA0SA
MDL number
MFCD00004526, MFCD00067248
InChIKey
AYFVYJQAPQTCCC-PWNYCUMCSA-N
InChI
InChI=1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3-/m1/s1
Canonical SMILES
CC(O)C(N)C(=O)O
Isomeric SMILES
C[C@H]([C@H](C(=O)O)N)O

Synonyms

  • D-allo-Threonine
  • (2R,3R)-2-amino-3-hydroxybutanoic acid
  • (R)-Allothreonine
  • (2R,3R)-Allothreonine
  • (R)-allo-Threonine
  • Allothreonine, D-
  • (2R,3R)-3-Hydroxy-2-aminobutanoic acid
  • H-D-ALLO-THR-OH
  • D(-)-allo-Threonine
  • DL-allo-Threonine
  • allo-D-threonine
  • (2R3R)-2-Amino-3-hydroxybutyric acid
  • DL-allothreonine
  • 4-04-00-03170 (Beilstein Handbook Reference)
  • Threonine, allo-
  • H-DL-allo-Thr-OH
  • D-allo-Thr
  • (2R,3R)-2-amino-3-hydroxybutanoicacid
  • (2R,3R)-2-amino-3-hydroxy-butanoic acid
  • DL-Allothreonine (contains threonine)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
119.12 g/molcalc.
Exact mass
119.0582 Dacalc.
LogP (octanol/water)
-1.22calc.
Topological polar surface area
83.55 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
8calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

D-Allothreonine suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 12 suppliers
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Where suppliers are based

12 suppliers in 3 countries

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D-Allothreonine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • bacterial metabolite
  • metabolite
  • prokaryotic metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code D-Allothreonine is traded under.

HS 2922.50Indicative HS code

Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function

World exports in 2024
$3.29B
−5.9% vs 2023, imports $3.19B
2019 to 2024
Top exporters
  1. China39.2%
  2. United Kingdom27.1%
  3. India * partner reported4.8%
Top importers
  1. United States20.7%
  2. Germany7.6%
  3. Italy6.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for D-Allothreonine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about D-Allothreonine, based on the data on this page

What is D-Allothreonine?

D-allothreonine is the D-enantiomer of allothreonine. It occurs as a component of peptido-lipids in certain bacteria. It has a role as a bacterial metabolite. It is a D-alpha-amino acid and an allothreonine. It is an enantiomer of a L-allothreonine. It is a tautomer of a D-allothreonine zwitterion.

What is the CAS number of D-Allothreonine?

The CAS registry number of D-Allothreonine is 24830-94-2. Other or deprecated CAS numbers: 144-98-9, 632-20-2.

What is the molecular formula and weight of D-Allothreonine?

The molecular formula of D-Allothreonine is C4H9NO3 and its molar mass is 119.12 g/mol.

What is D-Allothreonine used for?

Known uses and roles of D-Allothreonine include bacterial metabolite, metabolite and prokaryotic metabolite.

Is D-Allothreonine hazardous?

D-Allothreonine carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of D-Allothreonine?

D-Allothreonine is usually classified under HS code 292250 (Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy D-Allothreonine?

CompoundList lists 12 suppliers of D-Allothreonine in United States, China and Switzerland. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of D-Allothreonine?

Suppliers quote D-Allothreonine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle D-Allothreonine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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