Product ID:L-METHIONINE, M9625
MSDS Date:07/01/1999
FSC:6505
NIIN:00N092663
Status Code:A
MSDS Number: CJTVN

Emergency Phone: 314-771-5765

Info Phone: 314-771-5765

Cage: 21076

Telephone: 314-771-5765

Cage: 21076

(ORAL,RAT) 36 GM/KG.

CAS: 63-68-3

RTECS: PD0457000

LD50 LC50 Mixture:SEE INGREDIENTS & TOXICOLOGICAL INFO.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: MAY BE HARMFUL BY INHALATION,
INGESTION OR SKIN ABSORPTION. MAY CAUSE EYE IRRITATION. MAY CAUSE
SKIN IRRITATION. MATERIAL MAY BE IRRITATING TO MUCOUS MEMBRANES AND
UPPER RESPIRATORY TRACT.
Effects of Overexposure:SEE HEALTH HAZARDS.

First Aid:EYES: IMMEDIATELY FLUSH WITH COPIOUS AMOUNTS OF WATER FOR AT
LEAST 15 MINUTES. SKIN: IMMEDIATELY WASH WITH SOAP AND COPIOUS
AMOUNTS OF WATER. INHALATION: REMOVE TO FRESH AIR. INGESTION: CALL
MD IMMEDI ATELY .

Extinguishing Media:WATER SPRAY, CARBON DIOXIDE, DRY CHEMICAL POWDER OR
APPROPRIATE FOAM.
Fire Fighting Procedures:USE NIOSH APPROVED SCBA AND FULL PROTECTIVE
EQUIPMENT .

Spill Release Procedures:WEAR NIOSH APPROVED RESPIRATOR, CHEMICAL
SAFETY GOGGLES, RUBBER BOOTS AND HEAVY RUBBER GLOVES. SPILLED
MATERIAL SHOULD BE CAREFULLY WIPED UP OR MOISTENED WITH WATER AND
REMOVED. VENTILATE AREA AND WAS H SPILL SITE AFTER MATERIAL PICKUP
IS COMPLETE.

Handling and Storage Precautions:AVOID INHALATION. AVOID CONTACT WITH
EYES, SKIN AND CLOTHING. AVOID PROLONGED AND REPEATED EXPOSURE.
KEEP TIGHTLY CLOSED.

Respiratory Protection:NIOSH APPROVED RESPIRATOR APPROPRIATE FOR
EXPOSURE OF CONCERN .
Ventilation:MECHANICAL EXHAUST REQUIRED.
Protective Gloves:COMPATIBLE CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:ANSI APPROVED EYE WASH & DELUGE SHOWER .
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
MFR'S INFORMATION OF INGREDIENTS: MOLECULAR FORMULA: C5H11NO2S. EC NO:
200-562-9.

Melt/Freeze Pt:=284.C, 543.2F
M.P/F.P Text:DECOMPOSES
Decomp Temp:=284.C, 543.2F
Appearance and Odor:WHITE CRYSTALS.

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS.
Hazardous Decomposition Products:CARBON MONOXIDE, CARBON DIOXIDE,
NITROGEN OXIDES, SULFUR OXIDES.
Conditions to Avoid Polymerization:WILL NOT OCCUR.

Waste Disposal Methods:DISSOLVE OR MIX THE MATERIAL WITH A COMBUSTIBLE
SOLVENT AND BURN IN A CHEMICAL INCINERATOR EQUIPPED WITH AN
AFTERBURNER AND SCRUBBER. OBSERVE ALL FEDERAL, STATE AND LOCAL
ENVIRONMENTAL REGULATIONS.

Toxicological Information:TO THE BEST OF MFR'S KNOWLEDGE, THE CHEMICAL,
PHYSICAL AND TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY
INVESTIGATED. TOXICITY DATA: LD50:(ORAL,RAT) 36 GM/KG - GISAAA
48(6),20,1983. LD50:(IPR,RAT ) 4328 MG/KG - ABBIA4 58,253,1955.
LD50:(IPR,MUS) >9500 MG/KG - PMRSDJ 1,682,1981. ONLY SELECTED
REGISTRY OF TOXIC EFFECTS OF CHEMICAL SUBSTANCES (RTECS) DATA IS
PRESENTED HERE. SEE ACTUAL ENTRY IN RT ECS FOR COMPLETE
INFORMATION.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:DATA NOT YET AVAILABLE.

Transport Information:CONTACT SIGMA CHEMICAL COMPANY FOR TRANSPORTATION
INFORMATION.

Federal Regulatory Information:REVIEW, STANDARDS AND REGULATIONS: OEL=
MAK. OEL-RUSSIA:STEL 5 MG/M3 JAN 1993. NOHS 1974: HZD 81891; NIS 5;
TNF 23; NOS 17; TNE 12017 NOES 1983: HZD 81891; NIS 4; TNF 1116;
NOS 18; TNE 28520; TFE 1703 8. EPA GENETOX PROGRAM 1988, NEGATIVE:
SPERM MORPHOLOGY-MOUSE. EPA GENETOX PROGRAM 1988, INCONCLUSIVE:
MAMMALIAN MICRONUCLEUS. EPA TSCA SECTION 8(B) CHEMICAL INVENTORY.
EPA TSCA SECTION 8(D) UNPUBLISH ED HEALTH/SAFETY STUDIES. EPA TSCA
TEST SUBMISSION (TSCATS) DATA BASE. DECEMBER 1998