This report synthesises findings from 6 peer-reviewed papers addressing the following research question: How does contrastive learning alignment in MoCL compare to other self-supervised pre-training methods (e.g., GraphCL, GCA) in terms of downstream task accuracy on molecular property prediction. 10 claims were extracted from source literature; 10 were independently verified against retrieved documents. An automated multi-reviewer quality assessment produced a score of 9.0/10. This report is a machine-generated literature synthesis and does not constitute original research.Research goal: How does contrastive learning alignment in MoCL compare to other self-supervised pre-training methods (e.g., GraphCL, GCA) in terms of downstream task accuracy on molecular property prediction benchmarks like QM9 and PCQM4Mv2?Autonomous literature synthesis. Automated review score: 9.0/10. Full text and citation available at Assignee Research.