![(1S,2S,3R,5S)-2,3-Pinanediol; (1S-(1alpha,2alpha,3alpha,5alpha))-2,6,6-Trimethylbicyclo[3.1.1]heptane-2,3-diol](http://img.ecvery.com/photo/product402/1304331/product-1s-2s-3r-5s-2-3-pinanediol-1s-1alpha-2alpha-3alpha-5alpha-2-6-6-trimethylbicyclo-3-1-1-heptane-2-3-diol.jpg)
![Bortezomib Inter.; (1S-(1alpha,2alpha,3alpha,5alpha))-2,6,6-Trimethylbicyclo[3.1.1]heptane-2,3-diol](http://img.ecvery.com/photo/product304/1304332/product-bortezomib-inter-1s-1alpha-2alpha-3alpha-5alpha-2-6-6-trimethylbicyclo-3-1-1-heptane-2-3-diol.jpg)
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TEST ITEM | SPECIFICATION |
Appearance | White to off-white crystalline powder |
Melting Point | 53ºC — 57ºC |
Water | Not more than 3.0% |
Specific optical rotation | +6.0°— +10° |
Any other single impurity | Not more than 3.0% |
Purity (GC) | Not less than 97.0% |
Bortezomib Intermediate, (1S, 2S, 3R, 5S)-(+)-2, 3-pinanediol