Is Acid Orange 24 safe in cosmetics?
Acid Orange 24 has a safety rating of "MODERATE" in our database. EU status: permitted. US status: restricted.
Moderate
Cosmetic Ingredient
Acid Orange 24
Also known as: C.I. 20170, EC No.: 215-296-9, C.I. acid orange 024, C.I. Acid Orange 24, EINECS 215-296-9 (+2 more)
INCI: ACID ORANGE 24
Acid Orange 24 (CAS 1320-07-6) is a cosmetic cosmetic ingredient functioning as Colorant. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 1320-07-6 →
Auto-generated CPSR Part A draft with source citations
Function
Colorant
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
sodium 4-[(2Z)-2-[(5E)-5-[(2,4-dimethylphenyl)hydrazinylidene]-4,6-dioxocyclohex-2-en-1-ylidene]hydrazinyl]benzenesulfonate
InChIKey
VRDAELYOGRCZQD-NFLRKZIHSA-M
Regulatory Status
EU EU Status
permitted
US US Status
restricted
US Notes
Permanently listed as D&C Brown No. 1, certification required. Externally applied cosmetics only.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Acid Orange 24.
Calculate MoS for your specific formulation with the MoS Calculator.
EU CosIng Annex Listing
European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.
Annex II — Prohibited
Ref: 1232
(EC) 2009/1223
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
SA Saudi SFDA (II - Prohibited)
ASEAN Cosmetic Directive (II)
Ref: 1232
BRIN Brazil/India Cosmetics
Brazil: Prohibited
India: Prohibited (GNRAS)
Additional Jurisdictional Restrictions (1)
| Jurisdiction | Status | Max % | Product Type |
|---|---|---|---|
| KR | prohibited | - | - |
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Regulatory List Membership (3)
EU Banned in Cosmetics
EPA Safer Chemical Ingredients List (SCIL)
EU CosIng Cosmetics Ingredient Database
Expert Verdict
Expert safety assessment and concern-level summary for Acid Orange 24.
Regulatory Flags
colorant
eu_banned_cosmetics
epa_safer_alternative
eu_cosing_listed
Known Synonyms
C.I. 20170
EC No.: 215-296-9
C.I. acid orange 024
C.I. Acid Orange 24
EINECS 215-296-9
UNII-8796B4I6HE
215-296-9
Chemical Function
Dye
Regulatory Lists
banned; Europe; Personal care
inert_ingredient; non_food_use; Pesticides
SCIL (9/2019)
Personal care
SCIL (9/2019)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Acid Orange 24 allowed in the EU?
Acid Orange 24 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Acid Orange 24 do in cosmetics?
Acid Orange 24 functions as: Colorant. It is classified as a cosmetic ingredient in our database. CAS number: 1320-07-6.
Is Acid Orange 24 used outside cosmetics?
Acid Orange 24 also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Acid Orange 24 compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
Related Ingredients
Acid Blue 9
Excellent
Same category
Colorant, Hair Dyeing
Acid Blue 9 Aluminum Lake
Excellent
Same category
Colorant
Anthocyanins
Excellent
Same category
Colorant
Beta Vulgaris Extract
Excellent
Same category
Skin Conditioning, Colorant (betalain...
Beta Vulgaris Root Extract
Excellent
Same category
Skin Conditioning, Colorant (betanin/...
Beta Vulgaris Root Powder
Excellent
Same category
Skin conditioning, natural colorant, ...
(20S)-Protopanaxadiol
Moderate
Similar safety
(Cnidium Officinale/Coptis Chinensis/Glycyrrhiza Uralensis) Root Extract
Moderate
Similar safety
Skin conditioning
(Cryptomeria Japonica/Chamaecyparis Obtusa) Stem Ferment Extract
Moderate
Similar safety
Antimicrobial, antioxidant, humectant
(Eclipta Prostrata/Houttuynia Cordata) Leaf Extract
Moderate
Similar safety
Skin conditioning
(Lepidium Meyenii/Sarcodon Aspratus) Root Water
Moderate
Similar safety
Skin conditioning
(Licorice/Reynoutria Japonica) Root/Stem Extract
Moderate
Similar safety
Skin conditioning, antioxidant
Hydroxyethyl Urea
Excellent
Chemical family
Humectant, Moisturizing, Skin Conditi...
ACID RED 27
Moderate
Browse nearby
Hair Dyeing
ACID RED 51
Moderate
Browse nearby
Colorant, Hair Dyeing
Is Acid Orange 24 in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Acid Orange 24 in your formulation.