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EC number: 228-532-0
CAS number: 6290-03-5
The viscosity data generated on the source substance
[(R/S)-butane-1,3-diol (203-529-7; 107-88-0)] will be directly
applicable to the target substance [(R)-(-)-Butane-1,3-diol]. The
handbook viscosity values were within close agreement:
mm²/s at 25 °C; and
mm²/s at 25 °C (reported as 98.4 cSt at 25 °C).
The viscosity is predicted to be > 96 and < 98 mm²/s at 25 °C.
HYPOTHESIS FOR THE ANALOGUE APPROACH
for butane-1,3-diol (CAS No. 107-88-0) is used to address the
physical-chemical property data requirements for (R)-(-)-butane-1,3-diol
(CAS No. 6290-03-5) in an analogue read-across approach. The basis for
this read-across approach is the extreme structural similarity of the
source and target substances, in that the source substance is a racemic
mixture of a pair of enantiomers, whereas the target substance is solely
the R-enantiomer of that source pair. Two compounds that are enantiomers
of each other have the same physical properties, except for the
direction in which they rotate polarized light and how they interact
with different optical isomers of other compounds (ECHA, 2008). On this
basis, the physical-chemical property values available for the source
substance are directly applicable to the target substance.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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