+ Superblock (TBS) Blocking Buffer Dry Blend Blocking Buffer

SECTION 2: Hazards identification

Directive 1999/45/EC: Physical state Solid. [Powder.] OSHAIHCS status This material is considered hazardous by the

Potential Acute Health Effects

Inhalation Irnitating to respiratory system, Exposure to decomposition products may cause a health hazard. Serious effects may be delayed following exposure. Ingestion Harmful if swallowed, Skin * Inritating to skin. Eyes + Irritating to eyes,

Potential chronic health

effects Contains material that can cause target organ damage, 11/18/2009. 19 Superblock (TBS) Blocking Buffer Dry Blend Blocking Buffer 2, Carcinogenicity » No known significant effects or critical hazards. Mutagenicity - No known significant effects or critical hazards.

Teratogenic Effects

| No known significant effects or critical hazards, Developmental effects - No known significant effects or critical hazards, Fertility effects - No known significant effects or critical hazards. Target organs » Contains material which may cause damage to the following organs: kidneys, liver, skin, eyes, stomach. Over-exposure signs/symptoms Inhalation ; Adverse symptoms may include the following: respiratory tract irritation coughing Ingestion - No specific data, Skin Adverse symptoms may include the following: inftation redness Eyes . Adverse symptoms may include the following: pain or imitation walering redness Medical conditions . Pre-existing digestive disorders and disorders involving any other targel organs aggravated by over- mentioned in this MSDS as being at risk may be aggravated by over-exposure to this exposure product. The preparation is nat classified as dangerous according to Directive 1999/45/EC and its amendments.

2.1 Classification of the substance or mixture

Not classified. See toxicological information (section 11}