2-Phenylpropionaldehyde

CAS number: 34713-70-7
IFRA Standard status: Concentration restricted

Last updated · 25-05-2026Record completeness90%

The information here describes the ingredient in general. Its possible sources may vary and do not necessarily show the origin or form used in a particular YUMA product. For product-specific information, check the relevant product page.

Description

This ingredient is characterized by a sweet scent reminiscent of spring hyacinths, featuring herbal and floral notes that transport the senses to a spring bloom. Found naturally in mushrooms and tea, it contributes to their distinct aromas. Perfumers frequently produce a nature-identical version in laboratories, ensuring consistent quality while helping preserve the planet's natural resources. The lab-produced version can be derived from various sources, including renewable materials, making it a more sustainable choice for the fragrance industry.

Reported natural sources

MushroomsTea

Additional information

The hyacinth, the flower whose scent resembles this ingredient, has deep roots in Greek mythology. According to myth, the god Apollo transformed his beloved Hyacinth into this flower after his death, creating an eternal symbol of rebirth and spring.
In the world of tea, this ingredient contributes to the characteristic aroma of certain varieties, particularly spring-harvested white and green teas. Tea connoisseurs often describe these notes as fresh florals that bring vibrancy to the infusion.
Perfumers use this ingredient strategically to create seasonal compositions that represent spring and summer. It is frequently paired with green notes to capture the feel of freshly cut grass and blooming gardens, while in winter fragrances it can add an unexpected touch of optimism and renewal.

CAS number

34713-70-71340-11-093-53-8

Other names

2-Phenylpropanalα-MethyltolualdehydeHydratropaldehydeHydratropic aldehydeBenzeneacetaldehyde, α-methyl-α-Methylphenylacetaldehydeα-Phenylpropionaldehyde

Linked YUMA products

No YUMA products are linked to this ingredient

IFRA Standard status

The IFRA Standards form an industry self-regulatory system. They may prohibit or restrict the use of particular fragrance ingredients, or set specifications, according to end use. The status below reflects the IFRA data recorded for this ingredient. It is not a product certification and does not replace applicable law or assessment of the finished product.

Concentration restricted (R)

IFRA restrictions by category

IFRA categories group end uses by the type and level of exposure. A restriction or maximum concentration applies only to the stated category and does not automatically apply to another use. Check the related IFRA document for the applicable Standard version and its full conditions.

1. Lip products and children's toys
Max concentration0.029%
2. Deodorants and antiperspirants
Max concentration0.0087%
3. Face cosmetics and masks
Max concentration0.096%

Regulatory information

The safety of 2-Phenylpropionaldehyde has been evaluated by the Research Institute for Fragrance Materials (RIFM), and a peer-reviewed safety assessment has been published. It has been found to have the potential to cause skin sensitization in a small percentage of individuals. This means that, in a limited number of people, repeated contact at a sufficiently high level may cause a temporary reaction, including redness, rash, or itching on the skin. To prevent sensitization, RIFM has established a maximum acceptable concentration level for this ingredient, and the International Fragrance Association (IFRA) has issued a safe use standard for it in home and personal care products based on this level.

0-9 All ingredients

Category	Max concentration
1. Lip products and children's toys	0.029%
2. Deodorants and antiperspirants	0.0087%
3. Face cosmetics and masks	0.096%
4. Perfumes and fragranced products	0.16%
5A. Body lotions and powders	0.041%
5B. Face moisturizers and toners	0.041%
5C. Hand creams and sanitizers	0.041%
5D. Baby care products	0.014%
6. Oral care products	0.096%
7A. Rinse-off hair treatments	0.19%
7B. Leave-on hair products	0.19%
8. Intimate care products	0.014%
9. Rinse-off body products	0.32%
10A. Home care (non-aerosol)	0.32%
10B. Household aerosols and sprays	0.77%
11A. Products with minimal skin contact (no UV exposure)	0.014%
11B. Products with minimal skin contact (UV exposure)	0.014%
12. Products with no direct skin contact	31%