21 CFR § 58.83 - Reagents and solutions.

---
identifier: "/us/cfr/t21/s58.83"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 58.83 - Reagents and solutions."
title_number: 21
title_name: "Food and Drugs"
section_number: "58.83"
section_name: "Reagents and solutions."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "58"
part_name: "GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 342, 346, 346a, 348, 351, 352, 353, 355, 360, 360b-360f, 360h-360j, 371, 379e, 381; 42 U.S.C. 216, 262, 263b-263n."
regulatory_source: "43 FR 60013, Dec. 22, 1978, unless otherwise noted."
cfr_part: "58"
---


# 58.83 Reagents and solutions.

All reagents and solutions in the laboratory areas shall be labeled to indicate identity, titer or concentration, storage requirements, and expiration date. Deteriorated or outdated reagents and solutions shall not be used.