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Chlorides and other halides

Stop

Also known as Stannous fluoride, Tin difluoride, Tin bifluoride

CAS 7783-47-3Formula F2SnMolar mass 156.71 g/molEC 231-999-3
GHS signal word: Danger. Pictograms: Corrosive, Acute toxicity (severe), Harmful or irritant, Hazardous to the environment 49 suppliers listed Drug substance
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Stop chemical structure, F2Sn, CAS 7783-47-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Monoclinic, lamellar plates
Melting point
213 °C
Boiling point
850 °C
Density
4.57 g/cm³
Solubility
30-39% in water at 20 °C
HS code
282619
Category
Chlorides and other halides
UN number
UN 2811
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Stop?

Plain description, key identifiers and synonyms

Stannous fluoride is an inorganic fluoride salt.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
difluorotin
CAS number
7783-47-3 CAS number cross-checked
EC number
231-999-3
Molecular formula
F2Sn
INCI name
STANNOUS FLUORIDE
InChIKey
ANOBYBYXJXCGBS-UHFFFAOYSA-L
InChI
InChI=1S/2FH.Sn/h2*1H;/q;;+2/p-2
SMILES (canonical and isomeric)
F[Sn]F

Synonyms

  • Stannous fluoride
  • Tin difluoride
  • Tin bifluoride
  • Tin Fluoride (SnF2)
  • Easygel
  • Stancare
  • Stanide
  • Crest
  • Iradicar SnF2
  • Iradicav SnF2
  • King's Gel-Tin
  • Cap-Tin Mouthrinse
  • Stop Home Treatment
  • Iradicar Stannous Fluoride
  • Stannous fluoride (SnF2)
  • Stannous fluoride (USP)
  • Burkhart
  • Evernamel
  • Fluoridex
  • Gingimed
  • Omnigel
  • Stangard
  • Whitening
  • Stance
  • SmileSense
Show all 38 synonyms
  • PerioMed
  • Gelato Homecare
  • Sorbet Homecare
  • Tin Difluorides
  • Gum Detoxify
  • Plak Smacker
  • Gum Purify
  • Kids Crest
  • Difluoride, Tin
  • Stannous flouride
  • Kids Kare
  • Ionite H
  • Difluorides, Tin

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
Monoclinic, lamellar platesexp.
Taste
BITTER, SALTY TASTEexp.
Melting point
213 °Cexp.
Boiling point
850 °Cexp.
Density
4.57 g/cm³exp.
Solubility
30-39% in water at 20 °Cexp.

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
156.71 g/molcalc.
Exact mass
157.899 Dacalc.
LogP (octanol/water)
0.46calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H290May be corrosive to metals.
  • H301Toxic if swallowed.
  • H302Harmful if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (26)
  • P234Keep only in original packaging.
  • P260Do not breathe 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.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P390Absorb spillage to prevent material damage.
  • P391Collect spillage.
  • P405Store locked up.
  • P406Store in a corrosion resistant container with a resistant inner liner.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2811
Transport hazard class
6.1
Packing group
III

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

Stop suppliers

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All 49 suppliers
30 of 30 offers

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Where suppliers are based

49 suppliers in 10 countries

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Stop 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

Dental caries prophylactic.

Principal commercial use is in toothpaste formulations and other dental preparations, e.g., topical solutions, mouthwash, chewing gum, etc. for preventing demineralization of teeth.

Industrial uses: Other.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name STANNOUS FLUORIDE(antiplaque, oral care)

Functional uses

  • Pharmaceutical

Cosmetic functions

  • Antiplaque
  • Oral care

How it is made

By evaporating a soln of stannous oxide in hydrofluoric acid in absence of oxygen: Gay-Lussac, Thenard, Mem Phys Chem 2, 317 (1809), Nebergall et al, J Am Chem Soc 74, 1604 (1952), from tin and hydrogen fluoride: Muetterties, Inorg Chem 1, 342 (1962).

Commercially produced by the reaction of stannous oxide and aqueous HF or by dissolving tin in anhydrous or aqueous HF.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex III, restricted in cosmetics
    Name: Stannous Fluoride, Ref no: 35, Annex ref: III/35
  • Active ingredient in FDA approved drug labels

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 Stop is traded under.

HS 2826.19Indicative HS code

Fluorides, other

World exports in 2024
$428M
+8.5% vs 2023, imports $374M
2019 to 2024
Top exporters
  1. United States27.9%
  2. China20.9%
  3. Japan15.4%
Top importers
  1. China15.6%
  2. South Korea14.6%
  3. United States12.3%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Stop?

Stannous fluoride is an inorganic fluoride salt.

What is the CAS number of Stop?

The CAS registry number of Stop is 7783-47-3.

What is the molecular formula and weight of Stop?

The molecular formula of Stop is F2Sn and its molar mass is 156.71 g/mol.

What is Stop used for?

Dental caries prophylactic. Principal commercial use is in toothpaste formulations and other dental preparations, e.g., topical solutions, mouthwash, chewing gum, etc. for preventing demineralization of teeth. Industrial uses: Other. Use classes: Cosmetics.

Is Stop hazardous?

Stop carries the GHS signal word "Danger". Main hazards: may be corrosive to metals, toxic if swallowed, harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Stop?

Stop is usually classified under HS code 282619 (Fluorides, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Stop?

CompoundList lists 49 suppliers of Stop in United States, China, India, Germany 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 Stop in India?

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

What is the price of Stop?

Suppliers quote Stop 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

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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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