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Aromatic building blocks

Inezin

Also known as Phenylphosphonothioic acid O-ethyl S-(phenylmethyl) ester, ESBP, (RS)-(S-benzyl O-ethyl phenylphosphonothioate)

CAS 21722-85-0Formula C15H17O2PSMolar mass 292.34 g/mol
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Inezin chemical structure, C15H17O2PS, CAS 21722-85-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
21722-85-0
Formula
C15H17O2PS
Molar mass
292.34 g/mol
HS code
293149
Category
Aromatic building blocks

What is Inezin?

Plain description, key identifiers and synonyms

Inezin is a chemical substance with the molecular formula C15H17O2PS and a molar mass of 292.34 g/mol. Its CAS registry number is 21722-85-0. The IUPAC name is [ethoxy(phenyl)phosphoryl]sulfanylmethylbenzene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[ethoxy(phenyl)phosphoryl]sulfanylmethylbenzene
CAS number
21722-85-0 CAS number cross-checked
Molecular formula
C15H17O2PS
UNII
139T2EY20M
InChIKey
PBOOGLULPGUHFZ-UHFFFAOYSA-N
InChI
InChI=1S/C15H17O2PS/c1-2-17-18(16,15-11-7-4-8-12-15)19-13-14-9-5-3-6-10-14/h3-12H,2,13H2,1H3
SMILES (canonical and isomeric)
CCOP(=O)(C1=CC=CC=C1)SCC2=CC=CC=C2

Synonyms

  • Phenylphosphonothioic acid O-ethyl S-(phenylmethyl) ester
  • ESBP
  • (RS)-(S-benzyl O-ethyl phenylphosphonothioate)
  • Phosphonothioic acid, phenyl-, S-benzyl O-ethyl ester
  • Phosphonothioic acid, phenyl-, O-ethyl S-(phenylmethyl) ester
  • O-ethyl S-benzyl phenylphosphonothioate
  • S-Benzyl O-ethyl phenylphosphonothioate
  • o-Ethyl S-(phenylmethyl) p-phenylphosphonothioate

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
292.34 g/molcalc.
Exact mass
292.0687 Dacalc.
LogP (octanol/water)
4.47calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
6calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.2calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=[PH](SCc1ccccc1)c1ccccc1

O=[PH](SCc1ccccc1)c1ccccc1

2 rings, 16 atoms.

2 other chemicals share this scaffold

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.

Inezin suppliers

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

Frequently asked questions

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

What is Inezin?

Inezin is a chemical substance with the molecular formula C15H17O2PS and a molar mass of 292.34 g/mol. Its CAS registry number is 21722-85-0. The IUPAC name is [ethoxy(phenyl)phosphoryl]sulfanylmethylbenzene.

What is the CAS number of Inezin?

The CAS registry number of Inezin is 21722-85-0.

What is the molecular formula and weight of Inezin?

The molecular formula of Inezin is C15H17O2PS and its molar mass is 292.34 g/mol.

What is Inezin used for?

Known uses and roles of Inezin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Inezin hazardous?

No GHS hazard classification for Inezin 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 Inezin?

Inezin 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 Inezin?

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

What is the price of Inezin?

Suppliers quote Inezin 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 Inezin

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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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