Benzyl butyl phthalate (Reproductive)
Benzyl butyl phthalate is listed under California Proposition 65 for the Reproductive endpoint. Its established safe harbor level is 1200 µg/day as a MADL, determined for exposure primarily via the ingestion route. CAS registry number: 85-68-7.
Safe Harbor Level
| Field | Value |
|---|---|
| Chemical | Benzyl butyl phthalate |
| CAS Number | 85-68-7 |
| Toxicity Endpoint | Reproductive |
| Safe Harbor Basis | MADL |
| Safe Harbor Level | 1200 µg/day |
| Primary Exposure Route | Ingestion |
What this level means
A MADL is a daily exposure level for Benzyl butyl phthalate that — at or below 1200 µg/day per day — does not require a Proposition 65 warning because it poses no significant risk for the Reproductive endpoint. This is the Maximum Allowable Dose Level (MADL) — the daily intake for the reproductive/developmental endpoint.
- Level: 1200 µg/day per day (MADL).
- Endpoint: Reproductive.
- Route: exposure is assessed primarily through the ingestion route.
- CAS: 85-68-7.
Businesses that expose consumers to more than the safe harbor level for Benzyl butyl phthalate must provide a clear and reasonable Prop 65 warning. Compliance is assessed against the applicable OEHHA safe harbor level above; where no safe harbor level is established, an exposure assessment may be required.
Compliance notes
- Compare the daily exposure to the MADL of 1200 µg/day.
- If exposure exceeds the level, a Prop 65 warning is generally required.
- Confirm the current OEHHA listing and any updates to the level before relying on it — safe harbor levels are amended periodically.
Frequently Asked Questions
What is the Prop 65 safe harbor level for Benzyl butyl phthalate?
1200 µg/day per day (MADL).
What is the CAS number for Benzyl butyl phthalate?
85-68-7.
What endpoint is Benzyl butyl phthalate listed for?
Reproductive.
What is the primary route of exposure for Benzyl butyl phthalate?
The ingestion route.
What is the difference between an NSRL and a MADL?
An NSRL (No Significant Risk Level) applies to cancer endpoints; a MADL (Maximum Allowable Dose Level) applies to reproductive and developmental endpoints.