H-151 Sigma (SML2437)? Try a better option.

A Depth-Data-Driven Comparison: Critical Reasons Leading Labs are Switching from Sigma to Selleck’s H-151.

H-151 Selleck VS Sigma

H-151	Selleck(S6652)	Sigma(SML2437)
Free Aliquoting Service		N/A
Price	5mg, USD 147.0	5mg, USD 113.0
Purity	99.94%	98%
Citations	37	Unknown
Technical Support	95.37% response rate within 2 hours	Unknown
Knowledge	H-151 Mechanism of Action: STING Inhibition in Macrophage Research H-151 Working Concentration \| Cell Culture \| Treatment H-151 Solubility in DMSO H-151 Storage & Stability H-151 Molecular Weight \| Chemical Structure \| Stock Solution H-151 SDS｜MSDS	Unknown

Sigma is sourced from their official website（1/20/2026）