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Subject: Re: [DCHAS-L] LD50 Source Data
Date: Friday, October 18, 2019 at 7:03:00 AM
Author: Niteen Vaidya <niteenv**At_Symbol_Here**CHIROSOLVE.COM> 		Next by Date:
Subject: Re: [DCHAS-L] Validity of the risk matrix
Date: Fri, 18 Oct 2019 11:57:49 +0000
Author: Monona Rossol

From: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] LD50 Source Data
Date: Fri, 18 Oct 2019 11:53:19 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 1329303422.4589507.1571399599290**At_Symbol_Here**mail.yahoo.com
In-Reply-To


Since EPA proposed banning N pyrol (and will now pursue it under the new TSCA) and has banned methylene cloride for consumer use, there are MASSIVE bibliographies in the supporting documents in the Federal register for all of the toxicity tests for these two.  You can start your search at 84 FR 59 11420-11436.  This is the final decision, but it should reference the other FR locations.

Monona


-----Original Message-----
From: Nora Dunkel <noradunkel51**At_Symbol_Here**WEBSTER.EDU>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Sent: Fri, Oct 18, 2019 6:26 am
Subject: [DCHAS-L] LD50 Source Data

Does anyone know where to find the studies/source data for LD50 values listed in SDSs?  I'm specifically looking for studies/data on the reproductive/developmental hazards of methylene chloride and N-methyl-2-pyrrolidone (CAS # 872-50-4).  Is there a database somewhere or does each manufacturer keep its source data in-house?
 
Thanks!
 
Nora Dunkel
Chemical Safety Officer
Webster University
314 246 2244
661 348 1445
 
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