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Impurities and reference standards

Modafinil, (S)-

Also known as Modafinil, (+)-, (+)-Modafinil, 2-[(S)-(Diphenylmethyl)sulfinyl]acetamide

CAS 112111-47-4Formula C15H15NO2SMolar mass 273.36 g/molEC 807-091-3
GHS signal word: Warning. Pictograms: Harmful or irritant
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Modafinil, (S)- chemical structure, C15H15NO2S, CAS 112111-47-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
112111-47-4
Formula
C15H15NO2S
Molar mass
273.36 g/mol
EC number
807-091-3
HS code
293090
Category
Impurities and reference standards

What is Modafinil, (S)-?

Plain description, key identifiers and synonyms

(S)-modafinil is a 2-[(diphenylmethyl)sulfinyl]acetamide that has S configuration at the sulfur atom. The racemate comprising (S)-modafinil and its enantiomer, armodafinil, is known as modafinil and is used for the treatment of sleeping disorders such as narcolepsy, obstructive sleep apnoea, and shift-work sleep disorder. The enantiomers have similar pharmacological actions in animals. It has a role as a central nervous system stimulant and a eugeroic. It is an enantiomer of an armodafinil.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[(S)-benzhydrylsulfinyl]acetamide
CAS number
112111-47-4 CAS number cross-checked
EC number
807-091-3
Molecular formula
C15H15NO2S
UNII
152JRG3T0U
InChIKey
YFGHCGITMMYXAQ-IBGZPJMESA-N
InChI
InChI=1S/C15H15NO2S/c16-14(17)11-19(18)15(12-7-3-1-4-8-12)13-9-5-2-6-10-13/h1-10,15H,11H2,(H2,16,17)/t19-/m0/s1
Canonical SMILES
NC(=O)CS(=O)C(c1ccccc1)c1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)C(C2=CC=CC=C2)[S@@](=O)CC(=O)N

Synonyms

  • Modafinil, (+)-
  • (+)-Modafinil
  • 2-[(S)-(Diphenylmethyl)sulfinyl]acetamide
  • 2-((S)-(Diphenylmethyl)sulfinyl)acetamide
  • (S)-Modafinil
  • (S)-(+)-Modafinil
  • Acetamide, 2-((S)-(diphenylmethyl)sulfinyl)-
  • 2-[(S)-benzhydrylsulfinyl]acetamide
  • CRL 40983
  • NH 02D
  • Modafinil impurity 6
  • 2-[(S)-Diphenylmethanesulfinyl]acetamide

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
273.36 g/molcalc.
Exact mass
273.0824 Dacalc.
LogP (octanol/water)
2.01calc.
Topological polar surface area
60.16 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
5calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.13calc.
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, c1ccc(Cc2ccccc2)cc1

c1ccc(Cc2ccccc2)cc1

2 rings, 13 atoms, the Diphenylmethane ring system.

8,982 other chemicals share this scaffold

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.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Modafinil, (S)- suppliers

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Modafinil, (S)- 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

Roles

  • central nervous system drug
  • central nervous system stimulant
  • eugeroic
  • pharmaceutical
  • psychotropic drug

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

Frequently asked questions

Quick answers about Modafinil, (S)-, based on the data on this page

What is Modafinil, (S)-?

(S)-modafinil is a 2-[(diphenylmethyl)sulfinyl]acetamide that has S configuration at the sulfur atom.

What is the CAS number of Modafinil, (S)-?

The CAS registry number of Modafinil, (S)- is 112111-47-4.

What is the molecular formula and weight of Modafinil, (S)-?

The molecular formula of Modafinil, (S)- is C15H15NO2S and its molar mass is 273.36 g/mol.

What is Modafinil, (S)- used for?

Known uses and roles of Modafinil, (S)- include central nervous system drug, central nervous system stimulant, eugeroic, pharmaceutical and psychotropic drug.

Is Modafinil, (S)- hazardous?

Modafinil, (S)- carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Modafinil, (S)-?

Modafinil, (S)- 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 Modafinil, (S)-?

Post a free request on CompoundList and suppliers of Modafinil, (S)- will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Modafinil, (S)-?

Suppliers quote Modafinil, (S)- 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 Modafinil, (S)-

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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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