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Carboxylic acids and anhydrides

D-AP4

Also known as (2R)-2-amino-4-phosphonobutanoic acid, (R)-2-Amino-4-phosphonobutanoic acid, D-2-amino-4-phosphonobutanoic acid

CAS 78739-01-2Formula C4H10NO5PMolar mass 183.10 g/mol
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D-AP4 chemical structure, C4H10NO5P, CAS 78739-01-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
78739-01-2
Formula
C4H10NO5P
Molar mass
183.10 g/mol
HS code
293149
Category
Carboxylic acids and anhydrides

What is D-AP4?

Plain description, key identifiers and synonyms

D-AP4 is a chemical substance with the molecular formula C4H10NO5P and a molar mass of 183.10 g/mol. Its CAS registry number is 78739-01-2. The IUPAC name is (2R)-2-amino-4-phosphonobutanoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2R)-2-amino-4-phosphonobutanoic acid
CAS number
78739-01-2
Molecular formula
C4H10NO5P
UNII
D27J5G57JL
MDL number
MFCD00083243
InChIKey
DDOQBQRIEWHWBT-GSVOUGTGSA-N
InChI
InChI=1S/C4H10NO5P/c5-3(4(6)7)1-2-11(8,9)10/h3H,1-2,5H2,(H,6,7)(H2,8,9,10)/t3-/m1/s1
Canonical SMILES
NC(CCP(=O)(O)O)C(=O)O
Isomeric SMILES
C(CP(=O)(O)O)[C@H](C(=O)O)N

Synonyms

  • (2R)-2-amino-4-phosphonobutanoic acid
  • (R)-2-Amino-4-phosphonobutanoic acid
  • D-2-amino-4-phosphonobutanoic acid
  • Butanoic acid, 2-amino-4-phosphono-, (2R)-
  • 2-Amino-4-phosphonobutyric acid, (R)-
  • d-(-)-2-amino-4-phosphonobutanoic acid
  • Butanoic acid, 2-amino-4-phosphono-, (R)-
  • D(-)-2-Amino-4-phosphonobutanoic acid (D-AP4)
  • D-2-Amino-4-phosphonobutyric acid
  • Tocris-0101
  • Tocris-0102
  • D-APB
  • PDSP1_000361
  • PDSP2_000359
  • (R)-2-Amino-4-phosphonobutanoicacid
  • (r)-2-amino-4-phosphonobutyric acid
  • d(-)-2-amino-4-phosphonobutyric acid
  • (2R)-2-amino-4-phosphono-butanoic acid

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
183.10 g/molcalc.
Exact mass
183.0297 Dacalc.
LogP (octanol/water)
-1.03calc.
Topological polar surface area
120.9 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
Formal charge
0calc.
Stereocentres
1calc.
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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

D-AP4 suppliers

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D-AP4 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

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-AP4 is traded under.

HS 2931.49Indicative HS code

Non-halogenated organo-phosphorous derivatives, other

World exports in 2024
$3.44B
−6.5% vs 2023, imports $3.07B
2022 to 2024
Top exporters
  1. China54.9%
  2. United States25.4%
  3. Germany5.1%
Top importers
  1. United States20.9%
  2. Argentina14.9%
  3. Brazil14.3%
Reported customs values in USD, not prices.Full trade data

The HS code shown for D-AP4 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about D-AP4, based on the data on this page

What is D-AP4?

D-AP4 is a chemical substance with the molecular formula C4H10NO5P and a molar mass of 183.10 g/mol. Its CAS registry number is 78739-01-2. The IUPAC name is (2R)-2-amino-4-phosphonobutanoic acid.

What is the CAS number of D-AP4?

The CAS registry number of D-AP4 is 78739-01-2.

What is the molecular formula and weight of D-AP4?

The molecular formula of D-AP4 is C4H10NO5P and its molar mass is 183.10 g/mol.

What is D-AP4 used for?

Known uses and roles of D-AP4 include building blocks in research and laboratory.

Is D-AP4 hazardous?

No GHS hazard classification for D-AP4 is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of D-AP4?

D-AP4 is usually classified under HS code 293149 (Non-halogenated organo-phosphorous derivatives, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy D-AP4?

Post a free request on CompoundList and suppliers of D-AP4 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of D-AP4?

Suppliers quote D-AP4 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-AP4

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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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