PRODUCT #: 9052         NAME: BCG REAGENT

                      MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98

                           Printed Monday, March 10, 1903 3:22PM



Sigma Chemical Co.          Aldrich Chemical Co., Inc.    Fluka Chemical Corp.

P.O. Box 14508              1001 West St. Paul            1001 West St. Paul

St. Louis, MO 63178         Milwaukee, WI 53233           Milwaukee, WI 53233

Phone: 314-771-5765         Phone: 414-273-3850           Phone: 414-273-3850









SECTION 1. - - - - - - - - - CHEMICAL IDENTIFICATION- - - - - - - - - -

    CATALOG #:            9052

    NAME:                 BCG REAGENT

SECTION 2. - - - - - COMPOSITION/INFORMATION ON INGREDIENTS - - - - - -

    CAS #:     76-60-8

    EC NO: 200-972-8

  SYNONYMS

    BCG * BROMOCRESOL BLUE * BROMOCRESOL GREEN (6CI) * M-CRESOL, 4,4'-(3H-

    2,1-BENZOXATHIOL-3-YLIDENE)BIS(2,6-DIBROMO-, S,S-DIOXIDE (8CI) *

    TETRABROMO-M-CRESOLPHTHALEIN SULFONE * 3',3'',5',5''-TETRABROMO-M-

    CRESOLSULFONEPHTHALEIN *

SECTION 3. - - - - - - - - - - HAZARDS IDENTIFICATION - - - - - - - - -

  LABEL PRECAUTIONARY STATEMENTS

    CAUTION:

    AVOID CONTACT AND INHALATION.

SECTION 4. - - - - - - - - - - FIRST-AID MEASURES- - - - - - - - - - -

    IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH COPIOUS AMOUNTS OF

    WATER FOR AT LEAST 15 MINUTES.

    IN CASE OF CONTACT, IMMEDIATELY WASH SKIN WITH SOAP AND COPIOUS

    AMOUNTS OF WATER.

    IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING GIVE ARTIFICIAL

    RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.

    IF SWALLOWED, WASH OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS.

    CALL A PHYSICIAN.

    WASH CONTAMINATED CLOTHING BEFORE REUSE.

SECTION 5. - - - - - - - - - FIRE FIGHTING MEASURES - - - - - - - - - -

  EXTINGUISHING MEDIA

    WATER SPRAY.

    CARBON DIOXIDE, DRY CHEMICAL POWDER OR APPROPRIATE FOAM.

  SPECIAL FIREFIGHTING PROCEDURES

    WEAR SELF-CONTAINED BREATHING APPARATUS AND PROTECTIVE CLOTHING TO

    PREVENT CONTACT WITH SKIN AND EYES.

  UNUSUAL FIRE AND EXPLOSIONS HAZARDS

    EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

SECTION 6. - - - - - - - - ACCIDENTAL RELEASE MEASURES- - - - - - - - -

    WEAR RESPIRATOR, CHEMICAL SAFETY GOGGLES, RUBBER BOOTS AND HEAVY

    RUBBER GLOVES.

    SWEEP UP, PLACE IN A BAG AND HOLD FOR WASTE DISPOSAL.

    AVOID RAISING DUST.

    VENTILATE AREA AND WASH SPILL SITE AFTER MATERIAL PICKUP IS COMPLETE.

SECTION 7. - - - - - - - - - - HANDLING AND STORAGE- - - - - - - - - - -

    REFER TO SECTION 8.

SECTION 8. - - - - - - EXPOSURE CONTROLS/PERSONAL PROTECTION- - - - - -

    CHEMICAL SAFETY GOGGLES.

    RUBBER GLOVES.

    NIOSH/MSHA-APPROVED RESPIRATOR.

    SAFETY SHOWER AND EYE BATH.

    MECHANICAL EXHAUST REQUIRED.

    AVOID CONTACT AND INHALATION.



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                        PRODUCT #: 9052         NAME: BCG REAGENT

                     MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98

                          Printed Monday, March 10, 1903 3:22PM



    DO NOT GET IN EYES, ON SKIN, ON CLOTHING.

    WASH THOROUGHLY AFTER HANDLING.

    KEEP TIGHTLY CLOSED.

    STORE IN A COOL DRY PLACE.

SECTION 9. - - - - - - - PHYSICAL AND CHEMICAL PROPERTIES - - - - - - -

  PHYSICAL PROPERTIES

    MELTING POINT:       225'C (DEC)

    SOLUBILITY:

                                              ETHANOL -SOLUBLE

SECTION 10. - - - - - - - - -STABILITY AND REACTIVITY - - - - - - - - -

  INCOMPATIBILITIES

    STRONG OXIDIZING AGENTS

  HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS

    TOXIC FUMES OF:

    CARBON MONOXIDE, CARBON DIOXIDE

    SULFUR OXIDES

    HYDROGEN BROMIDE GAS

SECTION 11. - - - - - - - - - TOXICOLOGICAL INFORMATION - - - - - - - -

  ACUTE EFFECTS

    MAY BE HARMFUL BY INHALATION, INGESTION, OR SKIN ABSORPTION.

    MAY CAUSE IRRITATION.

    TO THE BEST OF OUR KNOWLEDGE, THE CHEMICAL, PHYSICAL, AND

    TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.

  RTECS #: SJ7456000

    PHENOL, 4,4'-(3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS(2,6-DIBROMO-3-METHYL-,

     S,S-DIOXIDE

    ONLY SELECTED REGISTRY OF TOXIC EFFECTS OF CHEMICAL SUBSTANCES

    (RTECS) DATA IS PRESENTED HERE. SEE ACTUAL ENTRY IN RTECS FOR

    COMPLETE INFORMATION.

SECTION 12. - - - - - - - - - ECOLOGICAL INFORMATION - - - - - - - - - -

    DATA NOT YET AVAILABLE.

SECTION 13. - - - - - - - - - DISPOSAL CONSIDERATIONS - - - - - - - - -

    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.

SECTION 14. - - - - - - - - - - TRANSPORT INFORMATION - - - - - - - - -

    CONTACT SIGMA CHEMICAL COMPANY FOR TRANSPORTATION INFORMATION.

SECTION 15. - - - - - - - - - REGULATORY INFORMATION - - - - - - - - - -

  REVIEWS, STANDARDS, AND REGULATIONS

    OEL=MAK

    NOHS 1974: HZD 81325; NIS 12; TNF 192; NOS 10; TNE 925

    NOES 1983: HZD 81325; NIS 14; TNF 835; NOS 13; TNE 14538; TFE 9176

    EPA GENETOX PROGRAM 1988, INCONCLUSIVE: B SUBTILIS REC ASSAY; HISTIDINE

     REVERSION-AMES TEST

    EPA TSCA SECTION 8(B) CHEMICAL INVENTORY

SECTION 16. - - - - - - - - - - OTHER INFORMATION- - - - - - - - - - - -

    THE ABOVE INFORMATION IS BELIEVED TO BE CORRECT BUT DOES NOT PURPORT TO

    BE ALL INCLUSIVE AND SHALL BE USED ONLY AS A GUIDE. SIGMA, ALDRICH,

    FLUKA SHALL NOT BE HELD LIABLE FOR ANY DAMAGE RESULTING FROM HANDLING

    OR FROM CONTACT WITH THE ABOVE PRODUCT. SEE REVERSE SIDE OF INVOICE OR

    PACKING SLIP FOR ADDITIONAL TERMS AND CONDITIONS OF SALE.

    COPYRIGHT 1997 SIGMA CHEMICAL CO., ALDRICH CHEMICAL CO., INC.,

    FLUKA CHEMIE AG

    LICENSE GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY









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