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L-Cysteine, hexaesterwith D-glucitol

Metals Remediation Compound (MRC??)
MATERIALS SAFETY DATA SHEET

Last Revised: February 10, 2004

Section 1 ?? Material Identification
Supplier:

1011 Calle Sombra
San Clemente, CA 92673
Phone: 949.366.8000
Fax: 949.366.8090
E-mail: info@regenesis.com

Propionic acid, 2-[2-[2-(2-hydroxy-1-oxopropoxy)-1-
Chemical Name:
oxoproxy]-1,2,3-propoanetriyl ester

Chemical Family: Organic Chemical

Trade Name: MRC, Glycerol Tripolylactate with Metal Control Agent

Used to remediate contaminated groundwater
Product Use:
(environmental applications)

Section 2 ?? Chemical Identification

CAS# Chemcial

201167-72-8 Glycerol Tripolylactate

444618-64-8 Sorbitol Cysteinate

50-21-5 Lactic Acid

56-81-5 Glycerol
Regenesis ?? MRC MSDS

Section 3 ?? Physical Data

Melting Point: Not Available (NA)

Boiling Point: Not Determined (ND)

Flash Point: N
Density: 1.35 g/cc

Solubility: Acetone and DMSO

Appearance: Viscous amber gel/liquid

Odor: Strong Amine/Sulfur Smell

Vapor Pressure: None

Section 4 ?? Fire and Explosion Hazard Data

Carbon Dioxide, Dry Chemical Po wder or Appropriate
Extinguishing Media:
Foam.

Water May be used to keep exposed containers cool. For large quantities involved in a
fire, one should wear full protective clothing and a NIOSH approved self contained
breathing apparatus with full face piece operated in the pressure demand or positive
pressure mode as for a situation where lack of oxygen and excess heat are present.

Section 5 ?? Toxicological Information

May be harmful by inhalation, ingestion, or skin absorption.
May cause irritation. To the best of our knowledge, the
chemical, physical, and toxicological properties of the
Acute Effects:
glycerol tripolylactate have not been investigated. Listed
below are the toxicological information for glycerol and
lactic acid.

MA8050000
RTECS#
Glycerol
Regenesis ?? MRC MSDS

Section 5 ?? Toxicological Information (cont)
85JCAE-,207,1986
SKN-RBT 500 MG/24H ML BIOFX* 9-4/1970
EYE-RBT 126 MG ML 85JCAE-,207,1986
Irritation Data: EYE-RBT 500 MG/24H ML 85JCAE -,656,86
SKN-RBT 5MG/24H SEV
AJOPAA 29,1363,46
EYE-RBT 750 UG SEV

ORL-MUS LD50:4090 MG/KG FRZKAP (6),56,1977
SCU-RBT LD50:100 MG/KG NIIRDN 6,215,1982
ORL-RAT LD50:12600 MG/KG FEPRA7 4,142,1945
LC50: > 570 MG/1H BIOFX* 9-4/1970
IHL-RATLC50:>570 MG/M3/1H RCOCB8 56,125,1987
IPR-RAT LD50: 4420 MG/KG ARZNAD 26,1581,1976
IVN-RAT LD50: 5566 MG/KG ARZNAD 26,1579,1978
IPR-MUS LD50: 8700 MG/KG NIIRDN 6,215,1982
SCU-MUS LD50: 91 MG/KG JAPMA8 39,583,1950
Toxicity Data: IVN-MUS LD50: 4250 MG/KG DMDJAP 31,276,1959
ORL-RBT LD50: 27 GM/KG BIOFX* 9-4/1970
SKN-RBT LD50:>10GM/KG NIIRDN 6,215,1982
IVN-RBT LD50: 53 GM/KG JIHTAB 23,259,1941
ORL-GPG LD50: 7750 MG/KG FMCHA2-,C252,91
ORL-RAT LD50:3543 MG/KG FMCHA2-,C252,91
SKN-RBT LD50:>2 GM/KG FAONAU 40,144,67
ORL-MUS LD50: 4875 MG/KG JIHTAB 23,259,41
ORL-GPG LD50: 1810 MG/KG FMCHA2-,C252,91
ORL-QAL LD50: >2250 MG/KG

Behavioral (headache), gastrointestinal (nausea or vomiting),
Paternal effects (spermatogenesis, testes, epididymis, sperm
Target Organ Data:
duct), effects of fertility (male fertility index, post-
implantation mortality).

Only selected registry of toxic effects of chemical substances (RTECS) data is presented
here. See actual entry in RTECS for complete information on lactic acid and glycerol.
Regenesis ?? MRC MSDS

Section 6 ?? Health Hazard Data

Handling: Avoid continued contact with skin. Avoid contact with eyes.

In any case of any exposure which elicits a response, a physician should be consulted
immediately.

First Aid Procedures

Remove to fresh air. If not breathing give artificial
Inhalation: respiration. In case of labored breathing give oxygen. Call a
physician.

No effects expected. Do not give anything to an unconscious
Ingestion:
person. Call a physician immediately.

Flush with plenty of water. Contaminated clothing may be
Skin Contact:
washed or dry cleaned normally.

Wash eyes with plenty of water for at least 15 minutes lifting
Eye Contact:
both upper and lower lids. Call a physician.

Section 7 ?? Reactivity Data

Conditions to Avoid: Strong oxidizing agents, bases and acids

Hazardous
None known.
Polymerization:

Further Information: Hydrolyses in water to form Lactic Acid and Glycerol.

Section 8 ?? Spill, Leak or Accident Procedures

Neutralization is not required. This combustible material
After Spillage or
may be burned in a chemical incinerator equipped with an
Leakage:
afterburner and scrubber.

Laws and regulations for disposal vary widely by locality.
Observe all applicable regulations and laws. This material
Disposal:
may be disposed of in solid waste. Material is readily
degradable and hydrolyses in several hours.

No requirement for a reportable quantity (CERCLA) of a spill is known.
Regenesis ?? MRC MSDS

Section 9 ?? Special Protection or Handling

Should be stored in plastic lined steel, plastic, glass, aluminum, stainless steel, or
reinforced fiberglass containers.

Protective Gloves: Vinyl or Rubber
Splash Goggles or Full Face Shield
Eyes:
Area should have approved means of washing eyes.
Ventilation: General exhaust.
Store in cool, dry, ventilated area. Protect from
Storage: incompatible materials.

Section 10 ?? Other Information

This material will degrade in the environment by hydrolysis to lactic acid and glycerol.
Materials containing reactive chemicals should be used only by personnel with
appropriate chemical training.

The information contained in this document is the best available to the supplier as of the
time of writing. Some possible hazards have been determined by analogy to similar
classes of material. No separate tests have been performed on the toxicity of this
material. The items in this document are subject to change and clarification as more
information becomes available.

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