18087-26-8 Usage
Physical state
White to brown crystalline solid
Usage
Commonly used in hair dyes and as a photographic developer
Chemical classification
Aromatic diamine
Melanin content
High, making it an effective hair dye ingredient
Sensitization potential
Associated with a potential for sensitization and allergic reactions when used on the skin
Regulatory scrutiny
Subject to regulatory scrutiny due to potential toxicity and human health concerns
Occupational exposure
Concerns regarding potential health risks in occupational settings
Consumer products
Used in consumer products, raising concerns about potential health risks for end-users
Check Digit Verification of cas no
The CAS Registry Mumber 18087-26-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,8 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 18087-26:
(7*1)+(6*8)+(5*0)+(4*8)+(3*7)+(2*2)+(1*6)=118
118 % 10 = 8
So 18087-26-8 is a valid CAS Registry Number.
18087-26-8Relevant articles and documents
METHOD FOR PREPARATION OF 4,4'-DINITRODIPHENYLAMINE AND 4,4'-BIS(ALKYLAMINO)DIPHENYLAMINE WITH THE BASE CATALYST COMPLEX
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Page/Page column 5, (2012/06/30)
Provided is a method for preparing 4,4′-dinitrodiphenylamine (4,4′-DNDPA) in high yield via the NASH reaction using a mixture of a bis-quaternary ammonium base and a base catalyst for the reaction of urea with nitrobenzene, and a method of preparing 4,4′-bis(alkylamino)diphenylamine (4,4′BAADA) in high yield and purity by hydrogenating the resulting 4,4′-DNDPA with a ketone in the presence of hydrogen and hydrogenation catalyst. The catalyst complex used in the present invention allows easy recovery, provides superior alkaline stability and is capable of reducing production cost.
