Database/Colorant/CI 10316
Mostly petroleum · ISO 16128

Is CI 10316 natural?

Mostly not. This nitro-naphthalene dye's aromatic core is petrochemical; only its sodium ions and sulfonate group are counted as mineral/natural.

INCI nameCI 10316
CAS846-70-8
FormulaC10H4N2Na2O8S · 358.19 Da
FunctionColorant · Hair Dyeing
FeedstockManufactured by nitration and sulfonation of petrochemical naphthol.…

How we scored it

MW 358.19; Na2 (45.98)+sulfonate SO3 (80.07) mineral/natural=126.1 Da; dinitro-naphtholate core (232.1 Da) synthetic. 126.1/358.19=0.352->0.35.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Manufactured by nitration and sulfonation of petrochemical naphthol. Only the sodium counter-ions and the sulfonate group are mineral in origin.

In plain English

Naphthol Yellow S, a synthetic yellow nitro dye used to colour cosmetics. Made from petrochemical aromatic chemicals, with sodium and sulfonate groups added during manufacture.

CosIng definition: CI 10316 is classed chemically as a nitro colour. It conforms to the formula:

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Structure

2D structure of CI 10316

disodium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate

PubChem CID 2724063 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2CI 10316. PubChem CID 2724063. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 10316. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 10316. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2010316