H acid [90-20-0]

H acid 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid molecular weight: 319 purity: 80% min sales basis on real content 80% H acid with good quality and cpmpetitive price, meet the requirement of dye manufacturer. We have established close cooperation with Chinese producers and share good reputation among customers, we work with efficient logistics company as long term partner. Among Compass greatest strengths are our experienced staff and their ability to meet individual customer needs. We have strong sourcing, marketing and logistics teams, we provide efficient and accurate follow up service. Look forward to have your inquiry. We will reply asap.