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Alkali earth metal sulfides

Canada Hotlist: Alkali earth metal sulfides

Health Canada lists this ingredient as restricted; the listed conditions and warnings apply.

All Canada recordsOpen ingredient profileCompare all marketsOpen official source

Regulatory decision and full conditions

Status
Restricted
Legal role
Official guidance
Regulatory summary
Health Canada lists this ingredient as restricted; the listed conditions and warnings apply.
Conditions and restrictions
Synonyms or related compounds: Barium sulfide; Calcium sulfide; Magnesium sulfide; Strontium sulfide | In hair removal (depilatory) products · Maximum concentration: 6% as sulfur

Substance identity

Official source name
Alkali earth metal sulfides
CAS
21109-95-5; 20548-54-3; 12032-36-9; 1314-96-1
EC
Not supplied in this source row
Identity mapping
Exact CAS: 21109-95-5
Linked ingredient
BARIUM SULFIDE
Search this identity across the siteCAS 21109-95-5CAS 20548-54-3CAS 12032-36-9CAS 1314-96-1

Linked CosIng identity data

Names and aliases

BARIUM SULFIDE

CosIng description: Barium sulphide

EU inventory restriction note: III/23

Recorded cosmetic function: DEPILATORY

Function pages:DEPILATORY

View the complete ingredient profile

Cross-market snapshot for this identity

Exact linked records currently present in this site. An absent market means no imported exact match, not permission to use the substance.

2 market datasets
PubChem 2D chemical structure for CAS 12032-36-9
CAS 12032-36-9PubChem CID 82824

Verified chemistry for CAS 12032-36-9

Magnesium sulfide

IUPAC name
sulfanylidenemagnesium
Molecular formula
MgS
Molecular weight
56.37 g/mol
Exact mass
55.9571129 Da
Monoisotopic mass
55.9571129 Da
Topological polar surface area
32.1 Ų
Molecular complexity
2.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Rotatable bonds
0
Heavy atoms
2
Covalent units
1

Names and synonyms reported to PubChem

Magnesium sulfide (MgS)Magnesium sulphideUNII-TWD834A2KDTWD834A2KDEINECS 234-771-1RefChem:155269MAGNESIUM SULFIDE [INCI]MAGNESIUM MONOSULFIDE
1 more reported name
(Sulfido)magnesium
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
[Mg]=S
InChI
InChI=1S/Mg.S
InChIKey
SMDQFHZIWNYSMR-UHFFFAOYSA-N

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match82824

Attributed physical-property, hazard, environmental and use annotations.

  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H252 (90.5%): Self-heating in large quantities; may catch fire [Warning Self-heating substances and mixtures]; H302 (90.5%): Harmful if swallowed [Warning Acute toxicity, oral]; H311 (90.5%): Toxic in contact with skin [Danger Acute toxicity, dermal]; H314 (90.5%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H400 (90.5%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P235, P260, P262, P264, P270, P273, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P361+P364, P363, P391, P405, P407, P410, P413, P420, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 42 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 1314-96-1
CAS 1314-96-1PubChem CID 14820

Verified chemistry for CAS 1314-96-1

Strontium sulfide

IUPAC name
sulfanylidenestrontium
Molecular formula
SSr
Molecular weight
119.69 g/mol
Exact mass
119.87768343 Da
Monoisotopic mass
119.87768343 Da
Topological polar surface area
32.1 Ų
Molecular complexity
2.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Rotatable bonds
0
Heavy atoms
2
Covalent units
1

Names and synonyms reported to PubChem

Strontium sulphideStrontium monosulfideHSDB 12UNII-06I13IA27TEINECS 215-249-2EC 215-249-206I13IA27TPIGMENT WHITE 8
11 more reported names
RefChem:186101C.I. 77847C.I. PIGMENT WHITE 8STRONTIUM SULFIDE [INCI]STRONTIUM SULFIDE [HSDB]STRONTIUM SULFIDE [MI]Strontium sulfide (SrS)ent-Voriconazole-d3StrontiumsulfidStrontium sulfide, >=99.9%Strontium sulfide (99.9%-Sr)
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
S=[Sr]
InChI
InChI=1S/S.Sr
InChIKey
XXCMBPUMZXRBTN-UHFFFAOYSA-N

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 20548-54-3
CAS 20548-54-3PubChem CID 10197613

Verified chemistry for CAS 20548-54-3

Calcium Sulfide

IUPAC name
calcium sulfide
Molecular formula
CaS
Molecular weight
72.15 g/mol
Exact mass
71.9346620 Da
Monoisotopic mass
71.9346620 Da
Topological polar surface area
1.0 Ų
Molecular complexity
0.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Rotatable bonds
0
Heavy atoms
2
Covalent units
2

Names and synonyms reported to PubChem

Calcium sulphide1MBW07J51QHEPAR SULPHURIS CALCAREUMHepar SulphurisHepar SulfHEPAR SULPHRefChem:54629CRUDE CALCIUM SULFIDE
16 more reported names
Hepar Sulph Calc Kit RefillHepar sulphuris calcareum 6CHepar Sulphuris Calcareum 30cHepar sulphuris calcareum 200CHepar sulphuris calcareum 7120Hepar sulfuris 30 Special OrderHepar Sulphuris Calcareum 200ckBestmade Natural Products Hepar SulphurisBestmade Natural Products Calcium Sulfide Hepar Sulph (Calc Sulf)243-873-5calcium monosulfideCalcium sulfide (CaS)Hepar sulfuris calcareumCalcium;sulfideCALCIUM SULFIDE [MI]CHEBI:81055
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
[S-2].[Ca+2]
InChI
InChI=1S/Ca.S/q+2;-2
InChIKey
AGVJBLHVMNHENQ-UHFFFAOYSA-N

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 21109-95-5
CAS 21109-95-5PubChem CID 6857597

Verified chemistry for CAS 21109-95-5

Barium sulfide

IUPAC name
barium(2+) sulfide
Molecular formula
BaS
Molecular weight
169.39 g/mol
Exact mass
169.877318 Da
Monoisotopic mass
169.877318 Da
Topological polar surface area
1.0 Ų
Molecular complexity
0.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Rotatable bonds
0
Heavy atoms
2
Covalent units
2

Names and synonyms reported to PubChem

Barium sulphideBariumsulfidBARIUM MONOSULFIDETV3U2GEW4HCHEBI:32590RefChem:916717barium(2+) ion sulfanediide244-214-4
9 more reported names
Barium sulfide (bas)barium(2+);sulfideBarium sulfide, blackEINECS 256-814-3EINECS 232-376-9barium hydrogen sulfideUNII-PET6ZVZ3MK[BaS]BARIUM SULFIDE [MI]
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
[S-2].[Ba+2]
InChI
InChI=1S/Ba.S/q+2;-2
InChIKey
CJDPJFRMHVXWPT-UHFFFAOYSA-N

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Official source and provenance

Registered source
Health Canada Cosmetic Ingredient Hotlist
Source reference
Hotlist restricted entry 6
Source record ID
restricted:6
Source version
Health Canada Hotlist 2025-08-13
Source language
English
Translation status
Original is English
Source updated
2025-08-13
Snapshot checked
2026-08-30 04:07 UTC
Validation method
strict HTML tables t1=490 and t2=90
SHA-256
8b52ff573d08373ee90121f6a701b3607e4a3d6fc748a7d56171eb53510af91a

Registered dataset notes

Dataset coverage
Administrative prohibitions, restrictions, conditions and warning requirements
Authority note
Official Health Canada compliance indicator; not a complete safety clearance
Inspect the exact official sourceRegulator guidance

How this record fits the market dataset

580
current Canada records
90
records marked Restricted
580
records from this source version
516
market records with CAS identity

Status distribution

Prohibited: 490Restricted: 90

Condition text is present on 172 of 580 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.

Canada market context

Complete Hotlist snapshot

Coverage version: Health Canada Cosmetic Ingredient Hotlist, 13 August 2025

All prohibited and restricted Hotlist entries, including conditions and warning requirements published in the official list.

Verification checklist

  1. Search English/French names and CAS identifiers.
  2. Apply every restriction, concentration and label warning.
  3. Check Food and Drugs Act/Cosmetic Regulations requirements.
  4. Recheck the current Hotlist before notification or sale.

Official market sources

Verification workflow and record completeness

Before using this result in a compliance decision

  1. Confirm that “Alkali earth metal sulfides” and every CAS/EC identifier refer to the material in your supplier specification.
  2. Search English/French names and CAS identifiers.
  3. Apply every restriction, concentration and label warning.
  4. Check Food and Drugs Act/Cosmetic Regulations requirements.
  5. Recheck the current Hotlist before notification or sale.
  6. Document the source version and recheck the regulator before manufacture, notification or market placement.

Fields available in this record

  • Official substance nameAvailable
  • CASAvailable
  • ECNot supplied
  • Separate condition textAvailable
  • Effective dateNot supplied
  • Snapshot hash and methodAvailable

Questions this page answers

This substance is not unrestricted: cosmetic use is subject to the conditions in the cited official record. Check product type, body area, concentration, purity and warning requirements before deciding whether a formulation is compliant.

If this row does not reproduce conditions, open the cited official detail because omission does not mean unrestricted use. The Hotlist is an administrative compliance tool, not an exhaustive safety approval list.

The record cites Hotlist restricted entry 6, source version Health Canada Hotlist 2025-08-13. Open the official source.

No. CAS helps resolve identity, but jurisdictions can classify the same substance differently and can apply different product scopes, limits, warnings and transition dates.

Stable citation

Alkali earth metal sulfides. Hotlist restricted entry 6. Canada. Source version Health Canada Hotlist 2025-08-13. CosIng Checker regulatory record: https://cosingchecker.com/regulations/ca/records/496/

Cite the regulator as the legal authority. This page is a structured evidence index and verification aid, not a substitute for the official text or professional legal assessment.

Interpretation and limits for Canada

This substance is not unrestricted: cosmetic use is subject to the conditions in the cited official record.

Check product type, body area, concentration, purity and warning requirements before deciding whether a formulation is compliant.

How to interpret the legal role

The authority uses this source as compliance guidance; the underlying legislation remains controlling.

Evidence on this page

  • Recorded outcome: Restricted
  • Legal role: Official guidance
  • Source version: Health Canada Hotlist 2025-08-13

What it does not prove

The Hotlist is an administrative compliance tool, not an exhaustive safety approval list.

Further authoritative substance research

These sources can add identity, safety, exposure or hazard context. A link is not evidence that the database contains this exact substance, and none of these sources overrides the market decision above.

Cosmetic Ingredient Review safety assessments

Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents

Independent expert review considered by FDA; not a government approval or binding market rule

Research this identity at the source

FDA Global Substance Registration System

UNII identifiers, preferred names, substance types, codes and public substance relationships

Identity registry only; UNII availability does not imply FDA review or approval

Research this identity at the source

ILO/WHO International Chemical Safety Cards

Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals

International occupational chemical-safety reference; not cosmetic-use approval

Research this identity at the source

Japan NITE-CHRIP

Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information

Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules

Research this identity at the source

NIOSH Pocket Guide to Chemical Hazards

REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals

US occupational-health guidance and limits; not a cosmetic ingredient decision

Research this identity at the source

OECD eChemPortal

Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records

Discovery gateway; each linked authority remains responsible for its data

Research this identity at the source

US EPA CompTox CTX APIs

API key required for import

DTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data

Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality

Research this identity at the source