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21609-90-5

Name LEPTOMYCIN B
CAS 21609-90-5
EINECS(EC#) 244-472-8
Molecular Formula C33H48O6
MDL Number MFCD06795848
Molecular Weight 540.73
MOL File 21609-90-5.mol

Chemical Properties

Appearance Leptophos is a tan, waxy solid
Melting point  71-73 °C
Boiling point  444.4±55.0 °C(Predicted)
density  1.53 g/cm3 (25 ºC)
Fp  >100 °C
storage temp.  0-6°C
solubility  DMSO (Slightly), Methanol (Slightly)
form  solid
color  White to Pale Yellow
Water Solubility  2.4mg/L(25 ºC)
BRN  2152663
Stability: Hygroscopic, Moisture Sensitive
CAS DataBase Reference 21609-90-5(CAS DataBase Reference)
EPA Substance Registry System Leptophos (21609-90-5)

Safety Data

Hazard Codes  T,N,Xi
Risk Statements 
R21:Harmful in contact with skin.
R25:Toxic if swallowed.
R39/25:Toxic: danger of very serious irreversible effects if swallowed .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S25:Avoid contact with eyes .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  2783
WGK Germany  3
RTECS  TB1720000
HazardClass  6.1(a)
PackingGroup  II
Hazardous Substances Data 21609-90-5(Hazardous Substances Data)
Toxicity
LD50 in adult male, female rats (mg/kg): 19, 20 orally (Gaines, Linder)

Hazard Information

Material Safety Data Sheet(MSDS)

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