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Trisodium 5-hydroxy-1-(4- sulphophenyl)-4-(4-sulpho- phenylazo) pyrazole -3- carboxylate and aluminium 15 lake ( ) Acid Yellow 23 (CAS 1934-21-0) Acid Yellow 23 Aluminum lake (CAS 12225-21-7) CI 19140

IS 4707 Part 2:2025 Annex B permits this ingredient only subject to the stated fields of use, limits, requirements and label warnings.

All India recordsOpen ingredient profileCompare all marketsOpen official source

Regulatory decision and full conditions

Status
Restricted
Legal role
Binding rule
Regulatory summary
IS 4707 Part 2:2025 Annex B permits this ingredient only subject to the stated fields of use, limits, requirements and label warnings.
Conditions and restrictions
Field of application/use: Hair dye substance in non- oxidative hair dye products | Maximum authorised concentration: 0.5 percent

Substance identity

Official source name
Trisodium 5-hydroxy-1-(4- sulphophenyl)-4-(4-sulpho- phenylazo) pyrazole -3- carboxylate and aluminium 15 lake ( ) Acid Yellow 23 (CAS 1934-21-0) Acid Yellow 23 Aluminum lake (CAS 12225-21-7) CI 19140
CAS
1934-21-0; 12225-21-7
EC
235-428-9
Identity mapping
cas_number
Linked ingredient
ACID YELLOW 23 ALUMINUM LAKE
Search this identity across the siteCAS 1934-21-0CAS 12225-21-7EC 235-428-9

Linked CosIng identity data

Names and aliases

ACID YELLOW 23 ALUMINUM LAKE

CosIng description: Aluminium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)-1H-pyrazole-3-carboxylate (CI 19140:1)

EU inventory restriction note: III/189 IV/44

Recorded cosmetic function: HAIR DYEING

Function pages:HAIR DYEING

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.

7 market datasets

New Zealand

Permitted list with conditionsRestricted

3 linked records · 3 with specific conditions

Open supporting record

United States

Permitted list with conditions

1 linked record · 1 with specific conditions

Open supporting record
PubChem 2D chemical structure for CAS 12225-21-7
CAS 12225-21-7PubChem CID 22833487

Verified chemistry for CAS 12225-21-7

C.I. Pigment Yellow 100

IUPAC name
aluminum tris(4-[[3-carboxy-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-yl]diazenyl]benzenesulfonate)
Molecular formula
C48H33AlN12O27S6
Molecular weight
1429.2 g/mol
Exact mass
1427.9717743 Da
Monoisotopic mass
1427.9717743 Da
Topological polar surface area
669.0 Ų
Molecular complexity
968.0
Formal charge
0
Hydrogen-bond donors
6
Hydrogen-bond acceptors
36
Rotatable bonds
15
Heavy atoms
94
Covalent units
4

Names and synonyms reported to PubChem

YELLOW LAKE TRefChem:572571JAPAN YELLOW 4 ALUMINUM LAKEFD AND C YELLOW NO. 5 ALUMINUM LAKE4,5-DIHYDRO-5-OXO-1-(4-SULFOPHENYL)-4-((4-SULFOPHENYL)AZO)-1H-PYRAZOLE-3-CARBOXYLIC ACID ALUMINUM COMPLEXaluminum;4-[[3-carboxy-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-yl]diazenyl]benzenesulfonateCHEBI:189920CID 22833487
2 more reported names
aluminum;4-[[3-carboxy-5-oxo-1-(4-sulophenyl)-4H-pyrazol-4-yl]diazenyl]benzenesulonateAluminium tris(4-{[3-carboxy-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzene-1-sulfonate)
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
3
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)[O-].C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)[O-].C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)[O-].[Al+3]
InChI
InChI=1S/3C16H12N4O9S2.Al/c3*21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;/h3*1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);/q;;;+3/p-3
InChIKey
WNVDZDLVUGYYKK-UHFFFAOYSA-K

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match22833487

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

  • Solubility: less than 1 mg/mL at 70 °F (NTP, 1992) Source: CAMEO Chemicals
  • First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) shou Source: CAMEO Chemicals
  • Note: This chemical does not meet GHS hazard criteria for 100% (503 of 503) of all reports. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 503 of 503 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 503 reports by companies from 1 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 503 of 503 reports by companies.; There are 0 notifications provided by 0 of 503 reports by companies with hazard statement code(s).; 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 1934-21-0
CAS 1934-21-0PubChem CID 164825

Verified chemistry for CAS 1934-21-0

Tartrazine

Tartrazine is an organic sodium salt which is the trisodium salt of tartrazine acid. A synthetic lemon yellow azo dye used as a food colouring. It has a role as a histological dye and a food colouring. It contains a tartrazine(3-). — ChEBI

IUPAC name
trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
Molecular formula
C16H9N4Na3O9S2
Molecular weight
534.4 g/mol
Exact mass
533.95040307 Da
Monoisotopic mass
533.95040307 Da
Topological polar surface area
229.0 Ų
Molecular complexity
949.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
12
Rotatable bonds
3
Heavy atoms
34
Covalent units
4

Names and synonyms reported to PubChem

Yellow 5Food Yellow 4Aizen tartrazineTartraphenineTartran YellowAmacid Yellow TCilefa Yellow T1342-47-8
16 more reported names
FD&C Yellow No. 5A.F. Yellow No. 4FD & C Yellow no. 5C.I. 19140Tartrazine FD&C Yellow #5Atul TartrazineErio TartrazineKako TartrazineTartrazine LakeTartrazine BTartrazine CTartrazine GTartrazine MTartrazine NTartrazine OTartrazine T
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
1
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]
InChI
InChI=1S/C16H12N4O9S2.3Na/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;;;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3
InChIKey
UJMBCXLDXJUMFB-UHFFFAOYSA-K

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
India BIS IS 4707 cosmetic ingredient standards
Source reference
IS 4707 (Part 2):2025 Annex B, entry 184
Source record ID
annex-b:184
Source version
IS 4707 (Part 2):2025, fifth revision
Source language
English
Translation status
Original is English
Effective date
2025-08-09
Source updated
2025-08-09
Snapshot checked
2026-08-31 15:30 UTC
Validation method
206 text layers; Annex A 1-1614 and Annex B 1-313 with seven lettered source rows
SHA-256
905dd0326361c53da8a354b948331946951ac3ae27d60d8e2474efb051239603

Registered dataset notes

Dataset coverage
Complete current Part 2:2025 Annex A prohibited and Annex B restricted rows; Parts 1, 3 and 4 remain linked official checks
Authority note
Indian Standards referenced by the cosmetics regulatory framework; use the controlled current editions
Inspect the exact official sourceRegulator guidance

How this record fits the market dataset

1931
current India records
317
records marked Restricted
1931
records from this source version
1836
market records with CAS identity

Status distribution

Prohibited: 1614Restricted: 317

Condition text is present on 1931 of 1931 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.

India market context

Complete current Part 2 dataset plus official workflow for Parts 1, 3 and 4

Coverage version: Cosmetics Rules 2020 plus current BIS IS 4707 parts (1:2020, 2:2025, 3:2025, 4:2022)

All 1,614 prohibited Annex A rows and 317 numbered/lettered restricted Annex B rows from IS 4707 Part 2:2025; official checks remain for colourants, preservatives and UV filters in Parts 1, 3 and 4.

Verification checklist

  1. Confirm product class and current Cosmetics Rules/gazette amendments.
  2. Check all applicable parts of IS 4707 by exact identity.
  3. Apply Schedule S/other finished-product standards where relevant.
  4. Verify licence/import registration, labelling and testing requirements.

Official market sources

Verification workflow and record completeness

Before using this result in a compliance decision

  1. Confirm that “Trisodium 5-hydroxy-1-(4- sulphophenyl)-4-(4-sulpho- phenylazo) pyrazole -3- carboxylate and aluminium 15 lake ( ) Acid Yellow 23 (CAS 1934-21-0) Acid Yellow 23 Aluminum lake (CAS 12225-21-7) CI 19140” and every CAS/EC identifier refer to the material in your supplier specification.
  2. Confirm product class and current Cosmetics Rules/gazette amendments.
  3. Check all applicable parts of IS 4707 by exact identity.
  4. Apply Schedule S/other finished-product standards where relevant.
  5. Verify licence/import registration, labelling and testing requirements.
  6. Document the source version and recheck the regulator before manufacture, notification or market placement.

Fields available in this record

  • Official substance nameAvailable
  • CASAvailable
  • ECAvailable
  • Separate condition textAvailable
  • Effective dateAvailable
  • 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 standards are separate controlled publications; absence from a locally indexed excerpt is not permission.

The record cites IS 4707 (Part 2):2025 Annex B, entry 184, source version IS 4707 (Part 2):2025, fifth revision. 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

Trisodium 5-hydroxy-1-(4- sulphophenyl)-4-(4-sulpho- phenylazo) pyrazole -3- carboxylate and aluminium 15 lake ( ) Acid Yellow 23 (CAS 1934-21-0) Acid Yellow 23 Aluminum lake (CAS 12225-21-7) CI 19140. IS 4707 (Part 2):2025 Annex B, entry 184. India. Source version IS 4707 (Part 2):2025, fifth revision. CosIng Checker regulatory record: https://cosingchecker.com/regulations/in/records/16396/

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 India

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 cited row forms part of a binding rule or legally incorporated list for this market.

Evidence on this page

  • Recorded outcome: Restricted
  • Legal role: Binding rule
  • Source version: IS 4707 (Part 2):2025, fifth revision
  • Effective date: 2025-08-09

What it does not prove

The standards are separate controlled publications; absence from a locally indexed excerpt is not permission.

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