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Central nervous system drugs

Sodium oxybate

Also known as Xyrem, Sodium 4-hydroxybutyrate, Oxybate sodium

CAS 502-85-2Formula C4H7NaO3Molar mass 126.09 g/molEC 207-953-3
Prohibited, not for trade Drug substance
Why it is not for trade
Sodium oxybate chemical structure, C4H7NaO3, CAS 502-85-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
502-85-2
Formula
C4H7NaO3
Molar mass
126.09 g/mol
EC number
207-953-3
HS code
291819
Category
Central nervous system drugs

What is Sodium oxybate?

Plain description, key identifiers and synonyms

gamma-hydroxybutyric acid is a DEA Schedule I controlled substance. Substances in the DEA Schedule I have no currently accepted medical use in the United States, a lack of accepted safety for use under medical supervision, and a high potential for abuse. It is a Depressants substance.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
sodium 4-hydroxybutanoate
CAS number
502-85-2 CAS number cross-checked
EC number
207-953-3
Molecular formula
C4H7NaO3
UNII
7G33012534
InChIKey
XYGBKMMCQDZQOZ-UHFFFAOYSA-M
InChI
InChI=1S/C4H8O3.Na/c5-3-1-2-4(6)7;/h5H,1-3H2,(H,6,7);/q;+1/p-1
SMILES (canonical and isomeric)
C(CC(=O)[O-])CO.[Na+]

Synonyms

  • Xyrem
  • Sodium 4-hydroxybutyrate
  • Oxybate sodium
  • Sodium Oxybutyrate
  • 4-Hydroxybutyric acid sodium salt
  • Catabate
  • Sodium gamma-hydroxybutyrate
  • Sodium oxybat
  • 4-Hydroxybutyrate sodium
  • Sodium-4-hydroxybutyrate
  • gamma-Hydroxybutyrate sodium
  • Lumryz
  • gamma-Hydroxy sodium butyrate
  • Butanoic acid, 4-hydroxy-, monosodium salt
  • gamma-Hydroxybutyrate sodium salt
  • 4-Hydroxybutyric acid monosodium salt
  • Xywav component sodium oxybate
  • Oxybate, Sodium
  • Oxybutyrate, Sodium
  • 4 Hydroxybutyrate Sodium
  • Sodium gamma Hydroxybutyrate
  • Somsanit
  • sodium 4-hydroxybutanoate
  • Gamma OH
  • Oxybate (sodium)
Show all 36 synonyms
  • Butanoic acid, 4-hydroxy-, sodium salt
  • EB 27
  • Hydroxybutyric acid monosodium salt
  • GHB.sodium salt
  • WY 3478
  • Sodium oxybate (USAN)
  • Butyric acid, 4-hydroxy-, monosodium salt
  • Butyric acid, 4-hydroxy-, sodium salt
  • Natrium 4-hydroxybutyrat
  • Sodium 4-hydroxybutyrate-2,2,3,3-d4
  • GHB Sodium Salt (Sodium Gammahydroxybutyrate)

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
126.09 g/molcalc.
Exact mass
126.0293 Dacalc.
LogP (octanol/water)
-4.49calc.
Topological polar surface area
60.36 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
8calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
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

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.

Sodium oxybate suppliers

Trading restrictions apply to this substance

Controlled or monitored substance

Sodium oxybate is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Our policy on controlled substances

Sodium oxybate price

Indicative price range per kg from live supplier offers

Prices are not shown for prohibited substances.

Uses and applications

What the substance is used for, by industry and function

Industries and functions

Pharmacological actions

  • Adjuvants, Anesthesia
  • Anesthetics, Intravenous

Roles

  • analgesic
  • antidyskinesia agent
  • antiparkinson drug
  • pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

Controlled or monitored substance

Sodium oxybate is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Our policy on controlled substances

Controls

  • US DEA controlled substance or listed chemical

Health and food

  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Sodium oxybate is traded under.

HS 2918.19Indicative HS code

Carboxylic acids with alcohol function but without other oxygen function, their…

World exports in 2024
$1.37B
+0.5% vs 2023, imports $1.18B
2019 to 2024
Top exporters
  1. China23.7%
  2. Italy14.7%
  3. India * partner reported12.0%
Top importers
  1. Germany11.7%
  2. South Korea9.8%
  3. Italy9.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Sodium oxybate, based on the data on this page

What is Sodium oxybate?

gamma-hydroxybutyric acid is a DEA Schedule I controlled substance. Substances in the DEA Schedule I have no currently accepted medical use in the United States, a lack of accepted safety for use under medical supervision, and a high potential for abuse. It is a Depressants substance.

What is the CAS number of Sodium oxybate?

The CAS registry number of Sodium oxybate is 502-85-2.

What is the molecular formula and weight of Sodium oxybate?

The molecular formula of Sodium oxybate is C4H7NaO3 and its molar mass is 126.09 g/mol.

What is Sodium oxybate used for?

Known uses and roles of Sodium oxybate include cns agents in pharmaceuticals, analgesic, antidyskinesia agent, antiparkinson drug, pharmaceutical and 2 more.

Is Sodium oxybate hazardous?

No GHS hazard classification for Sodium oxybate 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 Sodium oxybate?

Sodium oxybate is usually classified under HS code 291819 (Carboxylic acids with alcohol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Can I buy Sodium oxybate on CompoundList?

No. Sodium oxybate is on our prohibited list, so listings, quotes and messages for it are disabled. This page is kept for information only.

Guides for buyers

Practical guides that help when you source, ship or handle Sodium oxybate

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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