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Sd alcohol 1

CAS 8048-19-9

Concern score

Not assessed — no hazard data yet.

Sd alcohol 1 in plain language

What it is

On cosmetic ingredient lists it appears as “Sd alcohol 23-A”.

Also known as Sd alcohol 23-A · Sd alcohol 23-F · Sd alcohol 23-H · Sd alcohol 27-B · Sd alcohol 3-A · Sd alcohol 3-B

Show all 20 names

Sd alcohol 3-C · Sd alcohol 30 · Sd alcohol 31-A · Sd alcohol 36 · Sd alcohol 37 · Sd alcohol 38-B · Sd alcohol 38-C · Sd alcohol 38-D · Sd alcohol 38-F · Sd alcohol 39 · Sd alcohol 39-A · Sd alcohol 39-B · Sd alcohol 39-D · Alcohol Denat.

What it does

Used in cosmetics as a solvent, an astringent and a thickener. SD Alcohol 1 is ethyl alcohol denatured with methyl alcohol and one of the following: denatonium benzoate, MIBK, mixed isomers of nitropropane, or methyl n-butyl ketone, in accordance with 27CFR21.

  • Solvent
  • Astringent
  • Viscosity controlling
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

What we know about this ingredient

Canonical ingredient record built from 20 public-source records.

Regulation

No restrictions found. Sd alcohol 1 appears in these published regulatory listings.

  • EUCosIngActive20 entries
    • SD Alcohol 1 is ethyl alcohol denatured with methyl alcohol and one of the following: denatonium benzoate, MIBK, mixed isomers of nitropropane, or methyl n-butyl ketone, in accordance with 27CFR21.Source →
    • SD Alcohol 23-A is ethyl alcohol denatured with acetone in accordance with 27CFR21Source →
    • SD Alcohol 23-F is ethyl alcohol denatured with salicylic acid, resorcinol, and bergamot oil or bay oil (myrica oil) in accordance with 27CFR21.Source →
    • SD Alcohol 23-H is ethyl alcohol denatured with acetone and MIBK in accordance with 27CFR21Source →
    • SD Alcohol 27-B is ethyl alcohol denatured with lavender oil and medicinal soft soap (green soap) in accordance with 27CFR21.Source →
    • SD Alcohol 3-A is ethyl alcohol denatured with methyl alcohol in accordance with 27CFR21Source →
    • SD Alcohol 3-B is ethyl alcohol denatured with pine tar in accordance with 27CFR21.Source →
    • SD Alcohol 3-C is ethyl alcohol denatured with isopropyl alcohol in accordance with 27CFR21.Source →
    • SD Alcohol 30 is ethyl alcohol denatured with methyl alcohol in accordance with 27CFR21Source →
    • SD Alcohol 31-A is ethyl alcohol denatured with glycerin and hard soap in accordance with 27CFR21.Source →
    • SD Alcohol 36 is ethyl alcohol denatured with ammonium hydroxide and sodium hydroxide in accordance with 27CFR21.Source →
    • SD Alcohol 37 is ethyl alcohol denatured with eucalyptol, thymol and menthol in accordance with 27CFR21Source →
    • SD Alcohol 38-B is ethyl alcohol denatured with one or more of the following: anethol, anise oil, bay oil (myrcia oil), benzaldehyde, bergamot oil, bitter almond oil, camphor, cedar leaf oil, chlorothymol, cinnamic aldehyde, cinnamon oil (cassia oil), citronella oil (natural), clove oil, coal tar, eucalyptol, eucalyptus oil, eugenol, guaiacol, lavender oil, menthol, methyl salicylate, mustard oil, volatile (allyl isothiocyanate), peppermint oil, phenol, phenyl salicylate (salol), pine oil, pine needle oil, dwarf, rosemary oil, safrole, sassafras oil, spearmint oil, spearmint oil (terpeneless), spike lavender oil, natural, storax, thyme oil, thymol, tolu balsam, turpentine oil, or other approved essential oils in accordance with 27CFR21Source →
    • SD Alcohol 38-C is ethyl alcohol denatured with menthol and formaldehyde solution in accordance with 27CFR21.Source →
    • SD Alcohol 38-D is ethyl alcohol denatured with menthol and formaldehyde solution in accordance with 27CFR21.Source →
    • SD Alcohol 38-F is ethyl alcohol denatured with 1) thymol, chlorathymol, menthol, and either boric acid or polysorbate-80; 2) any two or more denaturants listed under Formula 38-B, and either boric acid or polysorbate-80; 3) any two or more denaturants listed under Formula 38-B, and zinc chloride and hydrochloric acid in accordance with 27CFR21Source →
    • SD Alcohol 39 is ethyl alcohol denatured with sodium salicylate or salicylic acid, and fluid extract of quassin, and t-butyl alcohol in accordance with 27CFR21.Source →
    • SD Alcohol 39-A is ethyl alcohol denatured with t-butyl alcohol and one of the following: quinine, quinine bisulfate, quinine dihydrochloride, cinchonidine, or cinchonidine sulfate or their salts in accordance with 27CFR21.Source →
    • SD Alcohol 39-B is ethyl alcohol denatured with t-butyl alcohol and diethyl phthalate in accordance with 27CFR21.Source →
    • SD Alcohol 39-D is ethyl alcohol denatured with bay oil (myrica oil) and either quinine sulfate, or sodium salicylate in accordance with 27CFR21Source →

Expert safety opinions

No expert opinion on file for Sd alcohol 1. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Sd alcohol 1 yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

1 data source

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries SD ALCOHOL 1.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Catalog

Found in these products

Cosmetic and personal-care products that list Sd alcohol 1 are shown first. Their ingredient lists include Sd alcohol 1; each product's own rating depends on its whole formula, so it is shown on the product page, not here.