Human metabolism and excretion kinetics of the fragrance lysmeral after a single oral dosage.
Scherer M, Koch HM, Schütze A, Pluym N, Krnac D, Gilch G, Leibold E, Scherer G.
Int J Hyg Environ Health. 2017 Mar;220(2 Pt A):123-129. doi: 10.1016/j.ijheh.2016.09.005. 
 
A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the human biomonitoring of non-occupational exposure to the fragrance 2-(4-tert-butylbenzyl)propionaldehyde (lysmeral).
Pluym N, Krnac D, Gilch G, Scherer M, Leibold E, Scherer G.
Anal Bioanal Chem. 2016 Aug;408(21):5873-5882. doi: 10.1007/s00216-016-9702-x.
 
Quantitative determination of some volatile suspected allergens in cosmetic creams spread on skin by direct contact sorptive tape extraction-gas chromatography-mass spectrometry.
Sgorbini B, Ruosi MR, Cordero C, Liberto E, Rubiolo P, Bicchi C.
J Chromatogr A. 2010 Apr 16;1217(16):2599-605. doi: 10.1016/j.chroma.2009.12.052.
 
Critical Review of Reproductive Toxicity data 2-(4-tert-butylbenzyl)propionaldehyde   Dr. Jochen Buschmann  Hannover, April 10, 2018

2-(4-tert-Butylbenzyl)propionaldehyde is a chemical compound, a fragrance used in:

• cosmetics
• shampoos
• toilet soaps

It is also used in:

• household cleaners
• detergents
• disinfectants

It is a colorless to pale yellow liquid with a powerful, floral-fresh odor.
It has no use as flavoring ingredient and therefore has no potential for ingestion. It has not been reported to  occur in nature.

Lysmeral/Lilial is a known sensitizer and labeled as R43.

2-(4-tert-Butylbenzyl)propionaldehyde studies

Molecular Formula: C₁₄H₂₀O

Molecular Weight: 204.313 g/mol

CAS: 89100-78-7

EC Number: 618-236-3    80-54-6 

PubChem Substance ID 329756419

MDL number MFCD00047655

Beilstein Registry Number 880140

•  4-(Trans-4-Ethylcyclohexyl)Phenol
• Lysmeral
• p-t-Butyl-α-Methylhydrocinnamic Aldehyde
• (BMHCA)
• 4-(Trans-4-ethyl cyclohexyl)phenol
• 4-(trans-4-ethyl-cyclohexyl)phenol
• 4-(4-ethylcyclohexyl)phenol
• Phenol, 4-(4-ethylcyclohexyl)-
• Phenol, 4-(4-ethylcyclohexyl)-, trans-
• 4-(trans-4-n-Ethylcyclohexyl)phenol
• 4-((1r,4r)-4-ethylcyclohexyl)phenol
• 4-(4alpha-Ethylcyclohexane-1beta-yl)phenol
• 4-(trans-4-n-ethylcyclohexyl)phenol,2pcoc14h20o
• SCHEMBL5478613
• SCHEMBL8568671
• SCHEMBL15725349