| Identification | More | [Name]
3-Hexyn-2,5-diol | [CAS]
3031-66-1 | [Synonyms]
3-hexyn-2,5-diol
3-HEXYNE-2,5-DIOL
3-HEXYNE-2,5-DIOL, DL AND MESO
BIS(1-HYDROXYETHYL)ACETYLENE
Hexyne-3-diol-2,5
3-hexyne-2,5-diol, mixture of (+/-)-and meso
hex-3-yne-2,5-diol
3-HEXYNE-2,5-DIOL, 97%, MIXTURE OF (+/-)-AND MESO ISOMERS
3-Hexyne-2,5-diol, dl + meso, 97%
NISTC3031661
3-Hexin-2,5-diol
Di(1-hydroxyethyl)acetylene | [EINECS(EC#)]
221-209-5 | [Molecular Formula]
C6H10O2 | [MDL Number]
MFCD00004542 | [Molecular Weight]
114.14 | [MOL File]
3031-66-1.mol |
| Safety Data | Back Directory | [Hazard Codes ]
T | [Risk Statements ]
R25:Toxic if swallowed.
R36:Irritating to the eyes. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
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) . | [RIDADR ]
UN 2811 6.1/PG 3
| [WGK Germany ]
2
| [RTECS ]
MR0175000
| [HazardClass ]
6.1(b) | [PackingGroup ]
III | [Toxicity]
mouse,LDLo,intraperitoneal,500mg/kg (500mg/kg),"Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 4, Pg. 378, 1952. |
| Hazard Information | Back Directory | [Description]
3-Hexyne-2,5-diol is a more or less solid yellow mass of crystals depending on the relative content of the meso form. It is miscible with water and polar solvents. 3-Hexyne-2,5-diol is produced by BASF from acetylene and acetaldehyde by the Reppe ethynylation method. | [Uses]
3-Hexyne-2,5-diol is used in the synthesis of hyperbrancehed poly([1,2,3]-triazoles. Also used in the synthesis of pyrazoles and thiopyrazoles. | [Application]
3-Hexyne-2,5-diol is used in nickel process baths as a brightener. It is the starting material for production of pyrroles and of 2,5-hexanediol, as well as in the production of 4-hydroxy-2,5-dimethyl-3-(2H)-furanone, trade name Furaneol, used as pineapple and strawberry flflavor. | [Flammability and Explosibility]
Nonflammable |
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