Sodium Copper Chlorophyllin

Sodium copper chlorophyllin is a high-value semi-synthetic natural pigment derived from natural green leafy plant raw materials, including silkworm excrement, clover, alfalfa and bamboo leaves. The raw materials are extracted with organic solvents such as acetone, methanol, ethanol and petroleum ether. In the production process, the central magnesium ion of natural chlorophyll is replaced by copper ion, and then alkaline saponification is carried out to remove methyl and phytol groups, which are converted into carboxyl groups and finally processed into disodium salt. Classified as a semi-synthetic pigment, it shares similar structural characteristics and production processes with homologous products including sodium iron chlorophyllin and sodium zinc chlorophyllin.

Sodium copper chlorophyllin is a dark green to black solid with stable physical and chemical properties. Its core property parameters are as follows: the melting point is higher than 300°C; it is slightly soluble in DMSO and very slightly soluble in methanol, and has good water solubility. For safe storage, the product needs to be placed in a dark, inert environment and stored at a low temperature of 2-8°C. Its estimated LogP value is 2.170. In terms of occupational exposure limits, the ACGIH TWA limit is 1 mg/m³, and the NIOSH IDLH limit is 100 mg/m³ with a TWA limit of 1 mg/m³. In addition, the product has complete industry certification and coding qualifications, including WGK Germany level 2 rating, RTECS number GS2168866, TSCA certification qualification, and HS code 32129000. The toxicological test data shows that the intraperitoneal LD50 of mice is 190mg/kg.