510(K) CLEARANCES 84 ▲14RECALLS POSTED 39 ▲27CLASS I 6 ▲2PMA DECISIONS 47 ▲11WEEK ENDING / FDA DATA AS OF
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K844808Substantially Equivalent

Methyl Green-Pyronin Stain Procedure Ht70

Sigma Chemical Co., St. Louis MO / Traditional, Substantially Equivalent
FDA source (opens on fda.gov)

K844808 is the FDA 510(k) clearance record for METHYL GREEN-PYRONIN STAIN PROCEDURE HT70, a class I device, cleared for Sigma Chemical Co. on under FDA product code HZA (Methyl Green). FDA records list 231 510(k) clearances for Sigma Chemical Co., from to . As of , FDA records show no recalls naming K844808.

Clearance record

Decision date
Received
(76 days to decision)
Product code
HZA Methyl Green
Regulation
21 CFR 864.1850
Device class
Class I
Review panel
Hematology
Applicant
Sigma Chemical Co. P.O. Box 14508, St. Louis MO
Third party review
No

Clearances, product code HZA

Trailing 12 months

FDA records hold no clearances under product code HZA in the trailing twelve months.

FDA records show no clearances under product code HZA in the twelve months to October 2026.
Show the numbers
Monthly 510(k) clearances under FDA product code HZA, trailing twelve months
MonthClearances
November 20250
December 20250
January 20260
February 20260
March 20260
April 20260
May 20260
June 20260
July 20260
August 20260
September 20260
October 20260