What is this CAS # ??

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Originally posted by JB:
Can anyone tell what kind of base oil this is:

CAS# 64741895
CAS# 64742650


The first is a heavy naphthenic mineral oil.

The second is a solvent dewaxed heavy paraffinic distillate.
 
Appeared in the MSDS for Caltex Havoline Energy.

I've been trying to search on those CAS numbers and the confusing thing is the slightly different descriptions I get.

CAS# 64741-89-5

CITGO: MINERAL OIL, PETROLEUM DISTILLATES SOLVENT-REFINED (SEVERE) LIGHT PARAFFINIC
CALTEX: solvent refined light paraffinic
ADAMS: severely solvent refined light paraffinic

CAS# 64742-65-0

CITGO: MINERAL OIL, PETROLEUM DISTILLATES, SOLVENT-DEWAXED HEAVY PARAFFINIC (SEVERE SOLVENT-REFINING AND/OR HYDROTREATMENT)
CALTEX: solvent dewaxed heavy paraffinic
CHEVRON: hydrotreated dewaxed heavy paraffinic
 
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