55-55-0 Usage
Description
4-Methylaminophenol sulfate, also known as Metol, is a white crystalline powder that is sensitive to light. It is the sulfate salt of 4-methylaminophenol and is commonly found in black-and-white film developers. It has been known to cause contact dermatitis in photographers.
Uses
Used in Photography:
4-Methylaminophenol sulfate is used as a photographic developer for black and white photography. It is also utilized as a tone developer in developing agents, enhancing the quality and appearance of the developed images.
Used in Fur Industry:
In the fur industry, 4-Methylaminophenol sulfate is used as a fur dye, providing color and enhancing the appearance of furs.
Used in Hair Dye Industry:
4-Methylaminophenol sulfate is also used in oxidative hair dye formulations, contributing to the coloring and styling of hair.
Used in Chemical Industry:
As a chemical compound, 4-Methylaminophenol sulfate may have other applications in the chemical industry, such as in the synthesis of various compounds or as an intermediate in chemical reactions.
Air & Water Reactions
Water soluble.
Hazard
Eye and skin irritant.
Fire Hazard
Flash point data for 4-Methylaminophenol sulfate are not available but 4-Methylaminophenol sulfate is probably combustible.
Purification Methods
Crystallise this photographic developer from H2O (needles m 250-260o) (its solubility is 5% at 20o and 17% at 100o) or MeOH. It is used for determining Ag. [Palit et al. Indian J Chem, Sect B 28 64 1989.]
Check Digit Verification of cas no
The CAS Registry Mumber 55-55-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 55-55:
(4*5)+(3*5)+(2*5)+(1*5)=50
50 % 10 = 0
So 55-55-0 is a valid CAS Registry Number.
InChI:InChI=1/2C7H9NO.H2O4S/c2*1-8-6-2-4-7(9)5-3-6;1-5(2,3)4/h2*2-5,8-9H,1H3;(H2,1,2,3,4)/p-2
55-55-0Relevant articles and documents
A one-pot synthesis of metol sulphate employing phase-transfer catalysis
Nag, Ahindra,Sarkar, Samir K.,Palit, Sunanda K.,Pandey, Shakti
, p. 64 (2007/10/02)
A one-pot two-step synthesis of metol sulphate using phase transfer catalysis is reported.