Amido Black 10B is an organic sodium salt resulting from the formal condensation of Amido Black 10B (acid form) with two equivalents of sodium hydroxide.
Definition
Amido Black 10B is an organic sodium salt resulting from the formal condensation of Amido Black 10B (acid form) with two equivalents of sodium hydroxide. It has a role as a histological dye. It contains a 4-amino-5-hydroxy-3-[(p-nitrophenyl)azo]-6-(phenylazo)-naphthalene-2,7-disulfonate.
Source: PubChem
US FDA substance register · UNII SZT789770M · registered name NAPHTHOL BLUE BLACK · single chemical substance
CI 20470 is classed chemically as a disazo colour. It conforms to the formula:
Cosmetic roles
Safety & regulatory references
- Restricted
- ASEAN · China · Japan · South Korea · Taiwan · United Kingdom
- Allowed colourant
- ASEAN · Taiwan · United States
Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS) · Taiwan FDA cosmetic ingredients · US FDA prohibited and restricted ingredients
Argentina · Brazil
- Field of application and/or use : Dye Substances allowed exclusively in products that have short time of skin and hair contact.
European Union
- Product Type, body parts : Hair dye substance in non-oxidative hair dye products
- Maximum concentration in ready for use preparation : 0,5 %
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex IV (allowed colourants), entry 46 · maximum concentration Rinse-off products
Source: EU allowed colourants (Annex IV)
EU Cosmetics Regulation, Annex III (restricted substances), entry 295 · maximum concentration 0,5 % · applies to Hair dye substance in non-oxidative hair dye products
Restriction IV/46
Source: EU CosIng ingredient list
Restriction IV/46 · Other restriction: ban substances that deplete the ozone layer · SCCS opinion: Opinion on Acid Black 1
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 黒４０１: 本品は、昭和41年厚生省令第30号に示される黒色401号又はそのアルミニウムレーキである。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 1064-48-8
- EC No.EU chemical inventory number
- 213-903-1
- DTXSIDUS EPA chemical ID
- DTXSID1024415
- DTXCIDUS EPA compound ID
- DTXCID001474145
- IUPAC
- Disodium 4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-(phenyldiazenyl)naphthalene-2,7-disulfonate
- Molecular formula
- C22H14N6Na2O9S2
- Molecular weight
- 616.49 g/mol
Measured properties
- Appearance
- A group of dark blue or black dyes, [Hawley] Black powder, [MSDSonline] There are water-soluble, ethanol-soluble, and fat-soluble nigrosines, [Ullmann] · solid
- Solubility
- SOME SOL IN WATER, ALC, OIL /NIGROSINES/
- Flammability (solid, gas)
- not flammable
- Vapour pressure
- 4.85E-29 ㎜Hg (25℃)
- Decomposition temperature
- 272~405 ℃
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 6 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Dye5
- Pigment1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
1 skin studies and 0 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 1 studies
- Low to Moderate Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Source: US EPA CompTox dashboard
Linked databases 27
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- China inventory of existing ingredients (IECIC)
- EU allowed colourants (Annex IV)
- EU CosIng ingredient list 2 3
- EU Cosmetics Regulation
- EU restricted substances (Annex III)
- EU SCCS safety opinions
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register
- MFDS (Korea) cosmetic regulatory information 2 3 4
- PubChem 2
- Taiwan FDA cosmetic ingredients
- Taiwan FDA cosmetic regulations
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA prohibited and restricted ingredients
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English