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Respiratory, allergy and digestive drugs

Rabeprazole

Also known as pariprazole, Eraloc, rabeprazol

CAS 117976-89-3Formula C18H21N3O3SMolar mass 359.45 g/molEC 601-501-2
GHS signal word: Warning. Pictograms: Harmful or irritant 127 suppliers listed Drug substance
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Rabeprazole chemical structure, C18H21N3O3S, CAS 117976-89-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
117976-89-3
Formula
C18H21N3O3S
Appearance
White crystals from CH2Cl2/ether
Melting point
99 to 100
HS code
293339
Category
Respiratory, allergy and digestive drugs
Illustrative photo, colourless crystals in a clear glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Rabeprazole?

Plain description, key identifiers and synonyms

Rabeprazole is a sulfoxide, a member of benzimidazoles and a member of pyridines. It has a role as an EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor and an anti-ulcer drug. It is a conjugate acid of a rabeprazole(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methylsulfinyl]-1H-benzimidazole
CAS number
117976-89-3 CAS number cross-checked
EC number
601-501-2
Molecular formula
C18H21N3O3S
UNII
32828355LL
MDL number
MFCD00868879
InChIKey
YREYEVIYCVEVJK-UHFFFAOYSA-N
InChI
InChI=1S/C18H21N3O3S/c1-13-16(19-9-8-17(13)24-11-5-10-23-2)12-25(22)18-20-14-6-3-4-7-15(14)21-18/h3-4,6-9H,5,10-12H2,1-2H3,(H,20,21)
SMILES (canonical and isomeric)
CC1=C(C=CN=C1CS(=O)C2=NC3=CC=CC=C3N2)OCCCOC

Synonyms

  • pariprazole
  • Eraloc
  • rabeprazol
  • 2-[[4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methylsulfinyl]-1H-benzimidazole
  • E-3810 (PPI)
  • 2-(((4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl)methyl)sulfinyl)-1H-benzimidazole
  • 1H-Benzimidazole, 2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfinyl]-
  • LY 307640
  • 1H-Benzimidazole, 2-(((4-(3-methoxypropoxy)-3-methyl-2-pyridinyl)methyl)sulfinyl)-
  • 2-{[4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methanesulfinyl}-1H-1,3-benzodiazole
  • 2-[[[4-(3-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfinyl]-1h-benzimidazole
  • 2-((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methylsulfinyl)-1H-benzimidazole
  • 2-({[4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methane}sulfinyl)-1H-1,3-benzodiazole
  • rabeprazolum
  • 2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methane)sulfinyl)-1H-1,3-benzodiazole
  • 2-((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methanesulfinyl)-1H-1,3-benzodiazole
  • 2-[{4-(3-methoxypropoxy)-3-methylpyridin-2-yl}methylsulfinyl]-1H-benzimidazole
  • 2-{[4-(3-Methoxypropoxy)-3-methylpyridin-2-yl]methylsulfinyl}-1H-benzimidazole
  • Aciphex
  • Habeprazole
  • Pariets
  • 2-(((4-(3-Methoxypropoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole
  • Rabeprazole (INN)
  • 2-({[4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methyl}sulfinyl)-1H-benzimidazole
  • Rabeloc
Show all 30 synonyms
  • Eraloc (TN)
  • 2-[[[4-(3-Methoxypropoxy)-3-methylpyridin-2-yl]methyl]sulfinyl]-1H-benzo[d]imidazole
  • 2--1H-benzimidazole
  • Rabeprazole (Standard)
  • (R)-2-(((4-(3-Methoxypropoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole

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

Appearance
White crystals from CH2Cl2/etherexp.
Melting point
99 to 100exp.
Vapour pressure
2.2 × 10⁻¹⁵ mm Hg at 25 °C /Estimated/exp.

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
359.45 g/molcalc.
Exact mass
359.1304 Dacalc.
LogP (octanol/water)
2.99calc.
Topological polar surface area
77.1 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
8calc.
Heavy atoms
25calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.33calc.
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=S(Cc1ccccn1)c1nc2ccccc2[nH]1

O=S(Cc1ccccn1)c1nc2ccccc2[nH]1

3 rings, 18 atoms, the Timoprazole ring system.

156 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

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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).
  • 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

Rabeprazole suppliers

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All 127 suppliers
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Where suppliers are based

127 suppliers in 18 countries

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Rabeprazole 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

Antiulcerative.

Pharmacological actions

  • Anti-Ulcer Agents
  • Proton Pump Inhibitors

Roles

  • anti-ulcer drug
  • antibacterial agent
  • antimicrobial agent
  • antineoplastic agent
  • enzyme inhibitor
  • pharmaceutical

Pharmacology

Rabeprazole is a Proton Pump Inhibitor. The mechanism of action of rabeprazole is as a Proton Pump Inhibitor.

How it is made

Preparation B. Roques et al., EP 38758 (1981), eidem US 4513009 (1988, 1991 both to Eisai)

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Rabeprazole?

Rabeprazole is a sulfoxide, a member of benzimidazoles and a member of pyridines. It has a role as an EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor and an anti-ulcer drug. It is a conjugate acid of a rabeprazole(1-).

What is the CAS number of Rabeprazole?

The CAS registry number of Rabeprazole is 117976-89-3.

What is the molecular formula and weight of Rabeprazole?

The molecular formula of Rabeprazole is C18H21N3O3S and its molar mass is 359.45 g/mol.

What is Rabeprazole used for?

Antiulcerative.

Is Rabeprazole hazardous?

Rabeprazole carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Rabeprazole?

Rabeprazole is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Rabeprazole?

CompoundList lists 127 suppliers of Rabeprazole in India, United States, China, Bangladesh and 14 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Rabeprazole in India?

34 suppliers in India list Rabeprazole on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Rabeprazole?

Suppliers quote Rabeprazole 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 Rabeprazole

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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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