Comparing E210 - Benzoic acid vs E642 - L-lysine hydrochloride

Overview

E210 - Benzoic acid

Benzoic acid (E210) is a preservative used to help keep acidic foods and drinks safe and fresh by slowing the growth of yeasts, molds, and some bacteria. It occurs naturally in small amounts in some berries and fermented foods, and is also made for food use under strict purity standards.

READ MORE >>

E642 - L-lysine hydrochloride

L-lysine hydrochloride (E642) is the hydrochloride salt of the essential amino acid L‑lysine. Food makers use it mainly to add lysine to foods, helping improve protein quality, and it can subtly round out flavor in protein-rich formulations. It is authorized as a food additive in the EU and permitted as a nutrient supplement in the United States.

READ MORE >>
Synonyms
E210
Benzoic acid
E642
L-lysine hydrochloride
L lysine hydrochloride
Functions
preservative
flavour enhancer
Origins
Plant
Synthetic
Microbiological
Products

Found in 386 products

Found in 0 products

Search rank & volume
#7533.2K / mo🇺🇸U.S.
#342350 / mo🇺🇸U.S.
Awareness score

×12.42
over-aware

Awareness data is not available.

Search volume over time

Interest over time for 2 keywords in U.S. during the last 10 years.

Interest over time for 3 keywords in U.S. during the last 10 years.

Read more about E210Read more
Read more about E642Read more
Popular questions

  1. Is benzoic acid soluble in water?

    Only sparingly—about 3 g per liter at room temperature; its solubility increases in hot water and it dissolves readily in many organic solvents.

  2. Is benzoic acid polar?

    It has a polar carboxyl group but a nonpolar aromatic ring, so overall it’s only weakly polar; its benzoate salt is much more polar and water‑soluble.

  3. Is benzoic acid a strong acid?

    No—it's a weak acid, with a pKa of about 4.2.

  4. What is the melting point of benzoic acid?

    About 122–123 °C (251–253 °F).

  5. Is benzoic acid bad for you?

    At approved food levels it’s considered safe, with an ADI of 0–5 mg/kg body weight/day; some people may experience irritation or hypersensitivity, and benzene formation in certain acidic drinks is monitored and kept very low.

READ MORE ABOUT E210READ MORE >>

  1. How long "freeze" nα-tosyl-l-lysine chloromethyl ketone hydrochloride ≥96% (tlc), powder?

    That refers to TLCK, a lab reagent, not the food additive E642. L‑lysine hydrochloride (E642) is typically stored dry at room temperature in airtight containers—not frozen—and remains stable for long periods if kept cool and dry.

  2. How long freeze nα-tosyl-l-lysine chloromethyl ketone hydrochloride ≥96% (tlc), powder?

    This is about TLCK, not the food additive E642. E642 (L‑lysine hydrochloride) is stored dry at ambient conditions in sealed packaging and does not require freezing; it’s stable when kept cool and dry.

  3. How to change fan in dell e642?

    This is unrelated to the food additive E642. L‑lysine hydrochloride (E642) is a food flavor enhancer/nutrient, not a laptop component.

  4. What does l lysine hydrochloride do?

    In foods it acts mainly as a flavor enhancer (E642), subtly boosting savory/sweet notes, and as a source of the essential amino acid lysine for fortification.

  5. What is difference between l lysine hydrochloride and lysine mono hydrochloride?

    None—“L‑lysine hydrochloride” and “L‑lysine monohydrochloride” are the same salt (E642); the latter just specifies one equivalent of HCl.

READ MORE ABOUT E642READ MORE >>