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Thiamine hydrochloride

CAS 63-66-1 · 60/100 · High conf.

Also registered as 5 other CAS numbers

70732-86-4 · 108631-50-1 · 2173536-98-4 · 2227489-38-3 · 67-03-8

Thiamine hydrochloride chemical structure

Concern score

60/100High concern based on regulatory listings.
High confidence

Thiamine hydrochloride in plain language

What it is

On cosmetic ingredient lists it appears as “Thiamine hcl”.

Also known as Thiamine hcl · Thiamine chloride hydrochloride · Hydrochloride thiamine chloride · Thymine hydrochloride · Vitamin B1 · Aneurine hydrochloride

Show all 31 names

Vitamin B1 hydrochloride · Clotiamina · Eskaphen · Apate drops · Betalin s · Betamin · Beatine · Begiolan · Benerva · Betabion hydrochloride · Bevitine · Biamine · Thiamin chloride · Thiamin dichloride · Thiamine dichloride · monohydrochloride Thiamine · Thiaminium chloride hydrochloride · Vitamin b(sub 1) hydrochloride · thiamin hydrochloride · thiamine hydrochloride (b1) · thiamine hydrochloride (vitamin b1) · thiamine hydrochloride - 200 mg/vial · thiamine hydrochloride. einecs # 200-641-8. · Thiaminum hydrochloricum · thiamini hydrochloridum

What it does

Used in cosmetics as a skin-conditioning agent and a fragrance ingredient.

  • Skin conditioning
  • Fragrance
  • Flavouring agent
  • Flavouring
  • Conditioner
  • Deodorant
Is it a concern?
High concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA CPDat observed this chemical in 66 composition records across product categories including Food and drug, Personal care.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Thiamine hydrochloride appears in these published regulatory listings.

  • In marketed US drugs

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Pharma
  • Food
  • EUEFSAEFSA opinion6 entries
    • Scientific Opinion on Flavouring Group Evaluation 76, Revision 1 (FGE.76Rev1): Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29 and miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21Rev3. EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF) (EFSA CEF)Source →
    • Safety and efficacy of thiazoles, thiophene and thiazoline belonging to chemical group 29 when used as flavourings for all animal species (EFSA FEEDAP)Source →
    • Scientific Opinion on the safety and efficacy of vitamin B1 (thiamine mononitrate and thiamine hydrochloride) as a feed additive for all animal species based on a dossier submitted by Lohmann Animal Health (EFSA FEEDAP)Source →
    • Scientific Opinion on the safety and efficacy of vitamin B1 (thiamine mononitrate and thiamine hydrochloride) as a feed additive for all animal species based on a dossier submitted by DSM Nutritional Products (EFSA FEEDAP)Source →
    • Flavouring Group Evaluation 76, (FGE.76): Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29, miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21. Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (EFSA AFC)Source →
    • Benfotiamine, thiamine monophosphate chloride and thiamine pyrophosphate chloride, as sources of vitamin B1 added for nutritional purposes to food supplements (EFSA ANS)Source →
  • USFDAmarketed drug occurrence2 entries
    • FDA NDC lists this ingredient in 1 active drug products and 1 total products.Source →
    • FDA NDC lists this ingredient in 59 active drug products and 66 total products.Source →
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • GLOBALJECFANo safety concern at current levels of intake when used as a flavouring agentJECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.
    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.Source →
  • GLOBALJECFAEvaluatedJECFA evaluation record.
  • USEPAcommercial use observedEPA CPDat observed this chemical in 66 composition records across product categories including Food and drug, Personal care. EPA CPDat classifies this chemical for functional uses including Deodorizer, Softener and conditioner, Fragrance.
    • EPA CPDat observed this chemical in 66 composition records across product categories including Food and drug, Personal care. EPA CPDat classifies this chemical for functional uses including Deodorizer, Softener and conditioner, Fragrance.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • 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.

  • EFSA

    European Food Safety Authority

    • Scientific Opinion on Flavouring Group Evaluation 76, Revision 1 (FGE.76Rev1): Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29 and miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21Rev3. EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF) (EFSA CEF)

      2013 · EU EFSA listing · Read the source →

    • Safety and efficacy of thiazoles, thiophene and thiazoline belonging to chemical group 29 when used as flavourings for all animal species (EFSA FEEDAP)

      2016 · EU EFSA listing · Read the source →

    • Scientific Opinion on the safety and efficacy of vitamin B1 (thiamine mononitrate and thiamine hydrochloride) as a feed additive for all animal species based on a dossier submitted by Lohmann Animal Health (EFSA FEEDAP)

      2011 · EU EFSA listing · Read the source →

    • Scientific Opinion on the safety and efficacy of vitamin B1 (thiamine mononitrate and thiamine hydrochloride) as a feed additive for all animal species based on a dossier submitted by DSM Nutritional Products (EFSA FEEDAP)

      2011 · EU EFSA listing · Read the source →

    • Flavouring Group Evaluation 76, (FGE.76): Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29, miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21. Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (EFSA AFC)

      2008 · EU EFSA listing · Read the source →

    • Benfotiamine, thiamine monophosphate chloride and thiamine pyrophosphate chloride, as sources of vitamin B1 added for nutritional purposes to food supplements (EFSA ANS)

      2008 · EU EFSA listing · Read the source →

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.

      Year not recorded · GLOBAL JECFA listing · Read the source →

    • JECFA evaluation record.

      Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

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

9 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →
  • EPA Chemical and Products Database

    exposure · updated September 2018

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA National Drug Code Directory

    regulatory · updated 2026-12-31

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)

Suitability

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

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

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.

Where it has been recorded

How often EPA CPDat has listed Thiamine hydrochloride in a product composition. These are source records, not Greenveil catalog products.

Source records

66

Named organisations

6

Food and drugPersonal care

Typical roles

Skin conditioningFragranceFlavouring agentFlavouringConditionerDeodorant
See products using Thiamine hydrochloride →

Catalog

Found in these products

Their ingredient lists include Thiamine hydrochloride; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Thiamine hydrochloride in the catalog.