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Canonical INCI monograph

ALPHA-TERPINENE

EU Annex III fragrance allergen

Alpha-Terpinene is the organic compound that conforms to the formula:

ALPHA-TERPINENE is listed in the European Commission CosIng inventory under the functional category Perfuming, with CAS number 99-86-5 and EC number 202-795-1. CosIng records a restriction against it (III/131), so check the corresponding Annex entry before formulating. In the free INCIDB sample it appears on 1 product label, reaching position 4 on Agua fresca de Bergamota. It is on the EU Annex III fragrance-allergen list (Regulation (EC) 1223/2009 as amended by Regulation (EU) 2023/1545), so labelling rules apply above the regulated thresholds.

CAS REGISTRY NUMBER
99-86-5
EC NUMBER
202-795-1
COSING FUNCTIONS
Perfuming
COSING RESTRICTION
III/131

Sample products containing ALPHA-TERPINENE

Label positions from the free INCIDB sample. A lower position means the ingredient is declared earlier, i.e. present in a higher proportion.

PRODUCT LABEL POSITION
Agua fresca de Bergamota #4

Query ALPHA-TERPINENE in the full snapshot

import pyarrow.parquet as pq

ingredients = pq.read_table('ingredients.parquet').to_pandas()
target = ingredients[ingredients['inci_name'] == "ALPHA-TERPINENE"]
print(target[['ingredient_id', 'functions', 'cas_number', 'is_common_allergen']])

The complete snapshot covers 18,583 products. Coverage of each enrichment column is published, both per distinct name and weighted by label occurrence — see the coverage table.

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