Lactic acid  cas no:50-21-5
         
           
           Synonyms:  DL-Milchsaeure;Propanoic acid, 2-hydroxy-;2-Hydroxy-2-methylacetic acid;Aethylidenmilchsaeure;Purac FCC 88;2-Hydroxypropionic acid;Tonsillosan;Racemic lactic acid;Milk acid;alpha-Hydroxypropanoic acid;FEMA No. 2611;Chem-Cast;Lactovagan;Lactate (TN);2-hydroxypropanoic acid;(RS)-2-Hydroxypropionsaeure;Propanoic acid, 2-hydroxy- (9CI);(+-)-2-Hydroxypropanoic acid;Fermentationlactic acid Propanoic acid,2-hydroxy-;SY-83;Ordinary lactic acid;Biolac;Acidum lacticum;Lactic acid (7CI,8CI);alpha-hydroxypropionic acid;Milchsaeure;1-Hydroxyethanecarboxylic acid;
           
           
           
            
      
         
          
          NameLactic acid 
            CAS50-21-5 
            SynonymsDL-Milchsaeure;Propanoic acid, 2-hydroxy-;2-Hydroxy-2-methylacetic acid;Aethylidenmilchsaeure;Purac FCC 88;2-Hydroxypropionic acid;Tonsillosan;Racemic lactic acid;Milk acid;alpha-Hydroxypropanoic acid;FEMA No. 2611;Chem-Cast;Lactovagan;Lactate (TN);2-hydroxypropanoic acid;(RS)-2-Hydroxypropionsaeure;Propanoic acid, 2-hydroxy- (9CI);(+-)-2-Hydroxypropanoic acid;Fermentationlactic acid Propanoic acid,2-hydroxy-;SY-83;Ordinary lactic acid;Biolac;Acidum lacticum;Lactic acid (7CI,8CI);alpha-hydroxypropionic acid;Milchsaeure;1-Hydroxyethanecarboxylic acid;
            EINECS(EC#)200-018-0 
            Molecular FormulaC3H6O3
            
            Molecular Weight90.09 
            
            
         
          
            Appearancecolourless to yellow liquid 
            
            alpha-0.05 o (C= NEAT 25 oC) 
            refractive index1.4252-1.4272 
            storage temp2-8°C 
            
            
            
            
          
          Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
            
            
            Hazardclass8 
            
      
          
          
            Hazard Xi: Irritant;C: Corrosive; 
              Risk R34;R38;R41
              Safety     
        
    
    
        
Hazard Codes:? Xi,
Xi, C
C 
        Risk Statements: 38-41-34?
        R38: Irritating to skin.?
        R41: Risk of serious damage to the eyes.?
        R34: Causes burns. 
        Safety Statements: 26-39-45-36/37/39
        S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
        S39: Wear eye / face protection.?
        S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
        S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
        RIDADR: 3265 
        WGK Germany: 2
        RTECS: OD2800000
        F: 3 
        HazardClass: 8 
        PackingGroup: III 
        Moderately toxic by ingestion and rectal routes. Mutation data reported. A severe skin and eye irritant. Mixtures with nitric acid + hydrofluoric acid may react vigorously and are storage hazards. When heated to decomposition it emits acrid smoke and irritating fumes.
    
              
              
              
              
              
                    
       
      
          
                
        
    
    
        
        
            
                
                    | Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source | 
            
            
                
                    | guinea pig | LD50 | oral | 1810mg/kg (1810mg/kg) | ? | Journal of Industrial Hygiene and Toxicology. Vol. 23, Pg. 259, 1941. | 
                
                    | mouse | LD50 | oral | 4875mg/kg (4875mg/kg) | ? | FAO Nutrition Meetings Report Series. Vol. 40, Pg. 144, 1967. | 
                
                    | quail | LD50 | oral | > 2250mg/kg (2250mg/kg) | ? | Farm Chemicals Handbook. Vol. -, Pg. C252, 1991. | 
                
                    | rabbit | LD50 | skin | > 2gm/kg (2000mg/kg) | ? | Farm Chemicals Handbook. Vol. -, Pg. C252, 1991. | 
                
                    | rabbit | LDLo | oral | 5gm/kg (5000mg/kg) | ? | Industrial and Engineering Chemistry. Vol. 15, Pg. 628, 1923. | 
                
                    | rabbit | LDLo | rectal | 600mg/kg (600mg/kg) | ? | Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 83, Pg. 136, 1920. | 
                
                    | rat | LD50 | oral | 3543mg/kg (3543mg/kg) | ? | Farm Chemicals Handbook. Vol. -, Pg. C252, 1991. |