Sodium C10-16 Benzenesulfonate (LAS)
- Anionic surfactants
- CAS 68081-81-2
- IUPAC: sodium (C10-C16)alkylbenzenesulfonate
Mild skin irritant at concentrate; low oral toxicity (LD50 ~1,400 mg/kg in rabbits). Eye irritation Cat 2A possible at concentrate. At typical consumer dilutions, low hazard. No asthmagen or Prop 65 listing.
Linear alkylbenzene sulfonate (LAS) in the C10–C16 carbon chain range is one of the most widely used anionic surfactants in consumer cleaning products. In car wash formulations, it is the primary cleaning and foam-generating agent. It is readily biodegradable and not bioaccumulative. Aquatic toxicity is moderate at concentrate but at typical consumer wash dilutions (1–2 oz per 5-gallon bucket = approximately 0.1–0.2% use strength), environmental risk is low. LAS is not on the Prop 65 list and has no asthmagen classification.
Health & environment profile
- VOC
- no
- Prop 65 listed
- no
- Asthmagen
- no
- EPA Safer Choice
- no
- Aquatic toxicity
- yes
- Biodegradable
- yes
- Bioaccumulative
- no
- Persistent
- no
- Ozone depleting
- no
- Microplastic
- no
- PFAS
- no
- Env. score
- 4/5
No products on file contain this (yet)
Health summaries are editorial — we synthesize from SDSs, peer-reviewed sources, and regulatory listings. Not medical advice.