237574
1,4-Dibromo-2,3-butanediol
95%, mixture of R,R and S,S isomers
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About This Item
Linear Formula:
BrCH2CH(OH)CH(OH)CH2Br
CAS Number:
Molecular Weight:
247.91
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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assay
95%
form
solid
mp
82-84 °C (lit.)
SMILES string
BrCC(O)C(O)CBr
InChI
1S/C4H8Br2O2/c5-1-3(7)4(8)2-6/h3-4,7-8H,1-2H2/t3-,4-/m1/s1
InChI key
XOWDQAHYPSENAC-QWWZWVQMSA-N
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General description
1,4-Dibromo-2,3-butanediol reacts with aqueous alkaline sodium arsenite to yield mixture of DL-2,3,4-trihydroxybutylarsonic acid and DL-2,3-dihydroxybutane-1,4-bis(arsonic acid).
Application
1,4-Dibromo-2,3-butanediol has been used in the preparation of diquaternary gemini surfactants.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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The reaction of DL-1,3-butadiene diepoxide and of DL-1,4-dibromo-2,3-butanediol with aqueous alkaline sodium arsenite, "Na(3)AsO(3)", gave mixtures of the title arsonic acids which can be separated by anion exchange resin. Characterization of by-products leads to a better understanding of these reactions.
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