International Chemical Safety Cards 2,4-DIAMINO-6-PHENYL-1,3,5-TRIAZINE ICSC: 1680 6-Phenyl-1,3,5-triazine- 2,4-diyldiamine Benzoguanamine 6-Phenyl-1,3,5-triazine- 2,4-diamine C9H9N5 / C6H5(C3N3)(NH2)2 Molecular mass: 187.2 ICSC #    1680 CAS #     91-76-9 RTECS # XY700000 EC #         613-038-00-3 October 12, 2006 Validated TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Fresh air, rest.  •SKIN Protective gloves. Rinse and then wash skin with water and soap.  •EYES Redness. Safety spectacles First rinse with plenty of water (remove contact lenses if easily possible).  •INGESTION Do not eat, drink, or smoke during work. Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention. See Notes. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: P3 filter respirator for toxic particles. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. Provision to contain effluent from fire extinguishing. Separated from strong oxidants, and food and feedstuffs. Store in an area without drain or sewer access. Do not transport with food and feedstuffs. Xn symbol R: 22-52/53 S: 2-61 Signal: Warning Excl mark Harmful if swallowed Harmful if inhaled dust Harmful to aquatic life with long lasting effects SEE IMPORTANT INFORMATION ON BACK ICSC: 1680 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards 2,4-DIAMINO-6-PHENYL-1,3,5-TRIAZINE ICSC: 1680 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE CRYSTALS OR POWDER. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic gases and irritating fumes. Reacts with strong oxidants . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by ingestion . LC50 (rat 4 h): 2.932 mg/l; t): 933-1470 mg/kg INHALATION RISK: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered EFFECTS OF SHORT-TERM EXPOSURE: The substance is mildly irritating to the eyes. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point (decomposes): >350°C Melting point: 228°C Density: 1.42 g/cm³ Solubility in water, g/100 ml at 20°C: 0.03 (very poor) Octanol/water partition coefficient as log Pow: 1.38 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. It is strongly advised that this substance does not enter the environment. N O T E S Health effects of exposure to the substance have not been investigated adequately. ADDITIONAL INFORMATION ICSC: 1680 2,4-DIAMINO-6-PHENYL-1,3,5-TRIAZINE (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.