Azelaic acid 123-99-9 purity99% CAS NO.123-99-9

azelaic acid
【synonyms】

1,7-dicarboxyheptane
emerox 1144
heptanedicarboxylic acid
lepargylic acid
nonanedioic acid
skinoren
【cas】

123-99-9
【formula】

c9h16o4
【molecular weight】

188.23
【einecs】

204-669-1
【rtecs】

cm1980000
【rtecs class】

primary irritant
【merck】

13,908
【beilstein/gmelin】

1101094
【beilstein reference】

4-02-00-02055
【ec class】

irritant
physical and chemical properties back to contents
【appearance】

white flakes.
【solubility in water】

2.4 g/l
【melting point】

106
【boiling point】

371
【vapor pressure】

2e-6 (25 c)
【density】

1.0287 g/cm3
【pka/pkb】

4.47 (pka)
【partition coefficient】

1.33
【heat of vaporization】

67.8 kj/mol
【usage】

effective against a number of skin conditions, such as mild to moderate acne, when applied topically in a cream.
【refractive index】

1.42808 (107.3 c)
first aid measures back to contents
【ingestion】

never give anything by mouth to an unconscious person. get medical aid. do not induce vomiting. if conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【inhalation】

remove from exposure to fresh air immediately. if not breathing, give artificial respiration. if breathing is difficult, give oxygen. get medical aid.
【skin】

get medical aid. flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. wash clothing before reuse.
【eyes】

flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. get medical aid.
handling and storage back to contents
【storage】

store in a tightly closed container. store in a cool, dry, well-ventilated area away from incompatible substances.
【handling】

wash thoroughly after handling. remove contaminated clothing and wash before reuse. use with adequate ventilation. minimize dust generation and accumulation. avoid contact with eyes, skin, and clothing. keep container tightly closed. avoid ingestion and inhalation.
hazards identification back to contents
【ingestion】

may cause irritation of the digestive tract. the toxicological properties of this substance have not been fully investigated.
【inhalation】

may cause respiratory tract irritation. the toxicological properties of this substance have not been fully investigated.
【skin】

may cause skin irritation.
【eyes】

may cause eye irritation.
【ec risk phrase】

r 36
【ec safety phrase】

s 22 24/25
exposure controls/personal protection back to contents
【personal protection】

eyes: wear appropriate protective eyeglasses or chemical safety goggles as described by osha's eye and face protection regulations in 29 cfr 1910.133 or european standard en166. skin: wear appropriate protective gloves to prevent skin exposure. clothing: wear appropriate protective clothing to prevent skin exposure.
【respirators】

a respiratory protection program that meets osha's 29 cfr 1910.134 and ansi z88.2 requirements or european standard en 149 must be followed whenever workplace conditions warrant a respirator's use.
fire fighting measures back to contents
【flash point】

192
【fire fighting】

wear a self-contained breathing apparatus in pressure-demand, msha/niosh (approved or equivalent), and full protective gear. during a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. extinguishing media: use agent most appropriate to extinguish fire. in case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【upper exp. limit】

6.5
【lower exp. limit】

.9
accidental release measures back to contents
【small spills/leaks】

clean up spills immediately, using the appropriate protective equipment. sweep up, then place into a suitable container for disposal. avoid generating dusty conditions. provide ventilation.
stability and reactivity back to contents
【disposal code】

4
【incompatibilities】

oxidizing agents.
【stability】

stable under normal temperatures and pressures.
【decomposition】

carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
transport information back to contents
【hs code】

2917 13 90