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Buffers and biological buffers

Mops

Also known as 3-Morpholinopropanesulfonic acid, 4-Morpholinepropanesulfonic acid, 3-(N-Morpholino)propanesulfonic acid

CAS 1132-61-2Formula C7H15NO4SMolar mass 209.27 g/molEC 214-478-5
GHS signal word: Warning. Pictograms: Harmful or irritant 49 suppliers listed
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Mops chemical structure, C7H15NO4S, CAS 1132-61-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1132-61-2
Formula
C7H15NO4S
Molar mass
209.27 g/mol
EC number
214-478-5
HS code
293499
Category
Buffers and biological buffers

What is Mops?

Plain description, key identifiers and synonyms

3-(N-morpholino)propanesulfonic acid is a Good's buffer substance, pKa = 7.2 at 20 C. It is an organosulfonic acid, a member of morpholines and a MOPS. It is a conjugate acid of a 3-(N-morpholino)propanesulfonate. It is a tautomer of a 3-(N-morpholiniumyl)propanesulfonate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-morpholin-4-ylpropane-1-sulfonic acid
CAS number
1132-61-2 CAS number cross-checked
EC number
214-478-5
Molecular formula
C7H15NO4S
UNII
273BP63NV3
MDL number
MFCD00006183
INCI name
MORPHOLINOPROPANE SULFONIC ACID
InChIKey
DVLFYONBTKHTER-UHFFFAOYSA-N
InChI
InChI=1S/C7H15NO4S/c9-13(10,11)7-1-2-8-3-5-12-6-4-8/h1-7H2,(H,9,10,11)
SMILES (canonical and isomeric)
C1COCCN1CCCS(=O)(=O)O

Synonyms

  • 3-Morpholinopropanesulfonic acid
  • 4-Morpholinepropanesulfonic acid
  • 3-(N-Morpholino)propanesulfonic acid
  • Morpholinopropane sulfonic acid
  • 3-morpholin-4-ylpropane-1-sulfonic acid
  • Morpholinopropanesulfonic acid
  • 3-[N-Morpholino]propanesulfonic acid
  • morpholine propanesulphonic acid
  • 3-Morpholinopropane-1-sulfonic acid
  • 3-(morpholin-4-yl)propane-1-sulfonic acid
  • 3[N-morpholino]propane sulfonic acid
  • 3-(4-Morpholino)propanesulfonic acid
  • 4-Morpholinepropane sulfonic acid
  • 3-N-Morpholinopropanesulfonic acid
  • Morpholinopropanesulfonic acid, WAS 15
  • 3-morpholin-4-ylpropanesulfonic acid
  • MOPS solution
  • 3-(N-Morpholino)propane Sulfonic Acid, MOPS
  • 4-Morpholinopropanesulphonic acid
  • 3-(N-Morpholino)propane Sulfonic Acid (MOPS)
  • 2axi
  • 3-(4-Morpholino)propane sulfonic acid
  • MOPS, biochemical grade
  • MOPS, p.a., 99%
  • 4-Morpholinopropanesulfonic acid
Show all 35 synonyms
  • MOPS, Vetec(TM) reagent grade
  • MOPS, >=99.5% (titration)
  • 3-(n-morpholino)-propanesulfonic acid
  • MOPS, >=99.0%
  • 3-[n-morpholino] propane sulfonic acid
  • MOPS, BioUltra, >=99.5% (T)
  • MOPS, BioXtra, >=99.5% (titration)
  • 3-(4-Morpholinyl)-1-propanesulfonic acid #
  • MOPS solution, 1M in water (+/- 0.1M)
  • MOPS, 3-(N-Morpholino)propanesulfonic 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
209.27 g/molcalc.
Exact mass
209.0722 Dacalc.
LogP (octanol/water)
-0.4calc.
Topological polar surface area
66.84 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
4calc.
Heavy atoms
13calc.
Rings
1calc.
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.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1COCCN1

C1COCCN1

1 ring, 6 atoms, the Morpholine ring system.

5,994 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

Mops suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 49 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

49 suppliers in 10 countries

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Mops price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name MORPHOLINOPROPANE SULFONIC ACID(bleaching, buffering)

Functional uses

  • Bleaching agent
  • pH regulating agent

Cosmetic functions

  • Bleaching
  • Buffering

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Mops?

3-(N-morpholino)propanesulfonic acid is a Good's buffer substance, pKa = 7.2 at 20 C. It is an organosulfonic acid, a member of morpholines and a MOPS. It is a conjugate acid of a 3-(N-morpholino)propanesulfonate. It is a tautomer of a 3-(N-morpholiniumyl)propanesulfonate.

What is the CAS number of Mops?

The CAS registry number of Mops is 1132-61-2.

What is the molecular formula and weight of Mops?

The molecular formula of Mops is C7H15NO4S and its molar mass is 209.27 g/mol.

What is Mops used for?

Known uses and roles of Mops include skin conditioning agents in cosmetics and personal care, buffers in research and laboratory, bleaching, buffering, bleaching agent and 1 more.

Is Mops hazardous?

Mops 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 Mops?

Mops is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Mops?

CompoundList lists 49 suppliers of Mops in China, United States, Germany, India and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Mops in India?

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

What is the price of Mops?

Suppliers quote Mops 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 Mops

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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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