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. 2017 Nov 14;15(11):e05013. doi: 10.2903/j.efsa.2017.5013

Table B.1.

In vitro genotoxicity studies on benzophenone [FL‐no: 07.032]

Chemical name FL‐no JECFA‐no End‐point Test system Concentration Results Reference Comments

Benzophenone

07.032

831

SOS/umuC assay S. Typhimurium TA1535 0–1,000 μMa Positive Takemoto et al. (2002) Study is reliable. Positive at the higher concentrations (100–1,000 μM) in the presence of metabolic activation. However, the relevance of this endpoint is low
7.8–1,000 μg/mLa Positive Kotnik et al. (2016) Study is reliable. Positive at the highest concentration in the presence of metabolic activation. However, the relevance of this endpoint is low
Bacterial reverse mutation assay S. Typhimurium TA98, TA100, TA1535, TA1537 10–2,000 μg/platea,d Negative CCRIS (2009) Reliability cannot be evaluated (full study report not available)
3–333 μg/plateb,e Negative
10–1,000 μg/plateb,e Negative
1–166 μg/platec,e Negative
Gene mutation in mammalian cells L5178Y (tk+/−) mouse lymphoma cells

33–90 μg/mLc

35–145 μg/mLb

Negative

8.9–142.8 μg/mLc

8.9–141.7 μg/mLb

Negative Jeon et al. (2007)

Reliable with limitations (experimental details are not provided)

80% inhibitory concentration (IC80) was used as maximum concentration

a

With and without metabolic activation.

b

With metabolic activation.

c

Without metabolic activation.

d

Plate‐incorporation.

e

Pre‐incubation.