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Amines and amides

Cystaphos

Also known as beta Aminoethylthiophosphate, Sodium Salt, Cistafos, Sodium Salt beta-Aminoethylthiophosphate

CAS 3724-89-8Formula C2H8NNaO3PSMolar mass 180.12 g/molEC 223-079-5
GHS signal word: Warning. Pictograms: Harmful or irritant
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Cystaphos chemical structure, C2H8NNaO3PS, CAS 3724-89-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3724-89-8
Formula
C2H8NNaO3PS
Molar mass
180.12 g/mol
EC number
223-079-5
HS code
293090
Category
Amines and amides

What is Cystaphos?

Plain description, key identifiers and synonyms

Cystaphos is a chemical substance with the molecular formula C2H8NNaO3PS and a molar mass of 180.12 g/mol. Its CAS registry number is 3724-89-8.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
3724-89-8
EC number
223-079-5
Molecular formula
C2H8NNaO3PS
InChIKey
CHBZJNGATWGSMX-UHFFFAOYSA-N
InChI
InChI=1S/C2H8NO3PS.Na/c3-1-2-8-7(4,5)6;/h1-3H2,(H2,4,5,6);
SMILES (canonical and isomeric)
C(CSP(=O)(O)O)N.[Na]

Synonyms

  • beta Aminoethylthiophosphate, Sodium Salt
  • Cistafos
  • Sodium Salt beta-Aminoethylthiophosphate
  • beta-Aminoethylthiophosphate, Sodium Salt
  • Salt beta-Aminoethylthiophosphate, Sodium
  • Cystafos
  • Ethanethiol, 2-amino-, dihydrogen phosphate (ester), monosodium salt
  • Cysteamine S-phosphate sodium salt, analytical standard

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
180.12 g/molcalc.
Exact mass
179.986 Dacalc.
LogP (octanol/water)
-0.61calc.
Topological polar surface area
83.55 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
9calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
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

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

Cystaphos suppliers

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Cystaphos 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

Pharmacological actions

  • Radiation-Protective Agents

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 Cystaphos 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 Cystaphos is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Cystaphos?

Cystaphos is a chemical substance with the molecular formula C2H8NNaO3PS and a molar mass of 180.12 g/mol. Its CAS registry number is 3724-89-8.

What is the CAS number of Cystaphos?

The CAS registry number of Cystaphos is 3724-89-8.

What is the molecular formula and weight of Cystaphos?

The molecular formula of Cystaphos is C2H8NNaO3PS and its molar mass is 180.12 g/mol.

What is Cystaphos used for?

Known uses and roles of Cystaphos include radiation-protective agents.

Is Cystaphos hazardous?

Cystaphos 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 Cystaphos?

Cystaphos 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 Cystaphos?

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What is the price of Cystaphos?

Suppliers quote Cystaphos 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 Cystaphos

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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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