... RN: 9003-55-8Formula: C12H14Molecular weight: 158.243Specifications of SBR-1500 (GB8655--88) ItemTop ClassClass OneQualifiedTest MethodVolatiles% ≤0.751.001. ... :SBR is a conventional synthetic rubber with grades as SBR-1500, SBR-1502 and SBR-1712. Compared with natural rubber, ... be blended with natural rubber in any proportion.Application:SBR-1500 is widely used for rubber products with carbon black ...