【1】English common name  hemin

【2】Commodity name  porphyrin, hemoglobin

【3】Chemical name  1,3,5,8﹣tetramethyl﹣2,4-divinylporphine﹣6,7﹣ferric chloride dipropionate

【4】CAS No.  16009-13-5

【5】Molecular formula  C34H32ClFeN4O4

【6】Relative molecular mass  651.94

【7】Physical and chemical properties

Hemin is crystal or powder, light transmission is dark brown, refraction is steel blue, odorless and tasteless, melting point >350℃, the relative density is 1.383[(20±1)℃]. Insoluble in water and acetic acid, slightly soluble in 70%-80% ethanol, soluble in dilute sodium hydroxide solution to form heme, soluble in strong organic acids (such as trimethylamine and xylidine) and acetic acid, soluble in concentrated sulfuric acid When iron is lost, it is easily soluble in dilute ammonia water. Sensitive to UV light and stable to heat.

【9】Toxic  slightly toxic

【10】Main dosage forms  0.3% hemin WP

【11】Features

Hemin is a new type of plant growth regulator, which is a group substitute for heme, the catalytic substrate of heme oxygenase. The use of hemin to drip, spray or soak plants, plant tissues and seeds can promote plant growth and morphogenesis, accelerate seed germination, improve antioxidant capacity, and increase plant stress resistance.

【12】Applied technology

Rice, wheat

Seed soaking treatment with 6.5mg/L liquid medicine for 24h can effectively alleviate the phenomenon of seed germination inhibition (including germination rate, germination potential, and germination index) under salt stress, and can improve amylase activity, reducing sugar and total soluble sugar content, resistance to germination. Oxidase activity and its transcriptional capacity.

Tomato, potato

In the growth period, spraying with 2~3mg/L liquid medicine for 2~3 times, with an interval of 7~10d, can adjust the growth of crops, improve the antioxidant capacity of crops and increase the resistance to stress.

【13】Notes

Pure hemin is easily degradable and needs to be processed and used after inclusion.

Please consult for details

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