137-09-7 Usage
Chemical Properties
Grey white powder
Uses
Different sources of media describe the Uses of 137-09-7 differently. You can refer to the following data:
1. A trade name for diamidophenol, a developing agent for silver bromide gelatin emulsions that was introduced by Dr. Anderson in 1892. Amidol made negatives grayish black, with very little fog. It was favored over other alkaline developers because it could facilitate faster exposures.
2. 2,4-Diaminophenol dihydrochloride (Amidol) is used in the dye manufacturing industries and as a color accelerator in photographic developers. It is also employed as a pharmaceutical intermediate.
3. 2,4-Diaminophenol dihydrochloride (Amidol) was used in the dye manufacturing industries and as a color accelerator in photographic developers.
General Description
Grayish-white crystals.
Air & Water Reactions
Water soluble.
Reactivity Profile
Sensitive to heat and light. Incompatible with acids.
Fire Hazard
Flash point data for 2,4-Diaminophenol dihydrochloride are not available. 2,4-Diaminophenol dihydrochloride is probably combustible.
Check Digit Verification of cas no
The CAS Registry Mumber 137-09-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137-09:
(5*1)+(4*3)+(3*7)+(2*0)+(1*9)=47
47 % 10 = 7
So 137-09-7 is a valid CAS Registry Number.
InChI:InChI=1/C6H8N2O.ClH/c7-4-1-2-6(9)5(8)3-4;/h1-3,9H,7-8H2;1H
137-09-7Relevant articles and documents
Synthesis of Substituted Dibenzophospholes. Part 5. Synthesis of Intermediates for 4- and 6-Aryl Substituents
Buttrus, Nabeel H.,Cornforth, Sir John,Hitchcock, Peter B.,Kumar, Ashok,Stuart, Alan S.
, p. 851 - 858 (2007/10/02)
6-Iodo-5-methoxy-8-methyl-1,2,3,4-tetrahydro-1,4-ethanonaphthalene was prepared from the Diels-Alder adduct of benzoquinone and cyclohexadiene.Diels-Alder condensation of 2-acetamimido-benzoquinone and 2-iodobenzoquinone (convenient, new syntheses of both quinones are described) with 2-methylcyclohexa-1,3-diene led to mixtures of adducts; the major adduct from the iodoquinone was isolated and found by X-ray analysis to have the methyl and iodo substituents at the 2- and 7-positions, respectively, of the 1,4-ethanonaphthalene skeleton.Addition of 2-acetamidobenzoquinone to mentha-2,6,8(9)-triene derived from (-)-carvone gave two regioisomers (structures determined by n.m.r. spectroscopy).In a smooth 4-step synthesis from 6,6-dimethylfulvene and benzoquinone, 6-iodo-9-syn-isopropyl-5,8-dimethoxy-1,2,3,4-tetrahydro-1,4-methanonaphthalene was prepared and its stucture confirmed by X-ray analysis.