Green, Floyd J. published the artcilePolychromasia of Cresyl Violet dyes; a chemical explanation of variations in pre-World War II products, Category: catalysis-chemistry, the publication is Stain Technology (1966), 41(4), 223-8, database is CAplus and MEDLINE.
Darrow Red (9-acetylamino-5-aminobenzo[¦Á]phenoxazonium chloride) and its 10-Me derivative, precursors of Cresyl Violet acetate (5,9-diaminobenzo[¦Á]phenoxazonium acetate) and 5,9-diamino-10-methylbenzo[¦Á]phenoxazonium acetate (the compound which duplicates visible absorbance spectra of the violet component of prewar German Cresyl Fast Violet and the current foreign product Cresyl Fast Violet), yielded polychrome products when subjected to alk. hydrolyses. The hydrolyses were accomplished by refluxing 17.5 g. of each acetylated compound with 25 g. NaOH in 250 ml. H2O. At the end of 1.5 hrs., visible spectra revealed, in each case, the presence of 3 components: the starting material, the deacetylated 9-amino compound (a Cresyl Violet) and the 5-oxo derivative Addnl. refluxing for 6.5 hrs. resulted in a product containing only the deacetylated 9-amino compound and the 5-oxo derivative in approx. equivalent amounts The latter mixture was not altered by addnl. refluxing. Absorbance maximum of compounds resulting from the hydrolysis of the 10-Me derivative of Darrow Red were bathochromic by 4-6 m¦Ì to their counterparts obtained from the hydrolysis of Darrow Red. Minor variations in manufacturing processes can readily affect the properties of these biological stains.
Stain Technology published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Category: catalysis-chemistry.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia