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Amines and amides

Phosphocysteamine

Also known as Cysteamine S-phosphate, Cysteamine-S-phosphate, S-phosphocysteamine

CAS 5746-40-7Formula C2H8NO3PSMolar mass 157.13 g/mol
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Phosphocysteamine chemical structure, C2H8NO3PS, CAS 5746-40-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5746-40-7
Formula
C2H8NO3PS
Molar mass
157.13 g/mol
HS code
293090
Category
Amines and amides

What is Phosphocysteamine?

Plain description, key identifiers and synonyms

Cysteamine S-phosphate is an organic thiophosphate that is the S-phospho derivative of cysteamine. It is an organic thiophosphate and a primary amino compound. It is functionally related to a cysteamine. It is a conjugate acid of a cysteamine S-phosphate(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-aminoethylsulfanylphosphonic acid
CAS number
5746-40-7 CAS number cross-checked
Molecular formula
C2H8NO3PS
UNII
WFH6A9S0V4
InChIKey
RZPNFYXFSHGGBE-UHFFFAOYSA-N
InChI
InChI=1S/C2H8NO3PS/c3-1-2-8-7(4,5)6/h1-3H2,(H2,4,5,6)
SMILES (canonical and isomeric)
C(CSP(=O)(O)O)N

Synonyms

  • Cysteamine S-phosphate
  • Cysteamine-S-phosphate
  • S-phosphocysteamine
  • Phosphorothioic acid, S-(2-aminoethyl) ester
  • 2-Aminoethanethiol dihydrogen phosphate (ester)
  • 2-Aminoethanethiol dihydrogen phosphate
  • Ethanethiol, 2-amino-, 1-(dihydrogen phosphate)
  • cysteinamine-S-phosphate
  • Phosphorothioic acid, S-(2-aminoethyl) ester (8CI)
  • 2-aminoethylsulfanylphosphonic acid
  • S-(2-Aminoethyl) phosphorothioate
  • s-(2-aminoethyl) dihydrogen phosphorothioate
  • Ethanethiol, 2-amino-, dihydrogen phosphate (ester)
  • Ethanethiol, 2-amino-, S-ester with phosphorothioic 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
157.13 g/molcalc.
Exact mass
156.9963 Dacalc.
LogP (octanol/water)
-0.23calc.
Topological polar surface area
83.55 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
8calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
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.

Phosphocysteamine suppliers

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Phosphocysteamine 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 Phosphocysteamine is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Phosphocysteamine, based on the data on this page

What is Phosphocysteamine?

Cysteamine S-phosphate is an organic thiophosphate that is the S-phospho derivative of cysteamine. It is an organic thiophosphate and a primary amino compound. It is functionally related to a cysteamine. It is a conjugate acid of a cysteamine S-phosphate(1-).

What is the CAS number of Phosphocysteamine?

The CAS registry number of Phosphocysteamine is 5746-40-7.

What is the molecular formula and weight of Phosphocysteamine?

The molecular formula of Phosphocysteamine is C2H8NO3PS and its molar mass is 157.13 g/mol.

What is Phosphocysteamine used for?

Known uses and roles of Phosphocysteamine include building blocks in research and laboratory.

Is Phosphocysteamine hazardous?

No GHS hazard classification for Phosphocysteamine 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 Phosphocysteamine?

Phosphocysteamine is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phosphocysteamine?

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

What is the price of Phosphocysteamine?

Suppliers quote Phosphocysteamine 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 Phosphocysteamine

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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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