475-80-9 Usage
Chemical Properties
Shiny brown leaflets or a yellow or white
powder.
Potential Exposure
Aristolochic acids are alkaloids used
primarily as a chemical intermediate for pharmaceuticals,
lab chemicals, herbal extract, drug.
Carcinogenicity
Aristolochic acids are known to be human carcinogens based on sufficient evidence of carcinogenicity from studies in humans and supporting data on mechanisms of carcinogenesis. Evidence of carcinogenicity from studies in experimental animals supports the findings in humans.
Shipping
UN1544 Alkaloids, solid, n.o.s. or Alkaloid salts,
solid, n.o.s. poisonous, Hazard Class: 6.1; Labels: 6.1-
Poisonous materials, Technical Name Required. PG III.
Incompatibilities
Compounds of the carboxyl group react
with all bases, both inorganic and organic (i.e., amines)
releasing substantial heat, water and a salt that may be
harmful. Incompatible with oxidizers (chlorates, nitrates,
peroxides, permanganates, perchlorates, chlorine, bromine,
fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong bases, strong acids,
oxoacids, epoxides.
Waste Disposal
It is inappropriate and possibly
dangerous to the environment to dispose of expired or
waste drugs and pharmaceuticals by flushing them down
the toilet or discarding them to the trash. Household quantities
of expired or waste pharmaceuticals may be mixed
with wet cat litter or coffee grounds, double-bagged in
plastic, discard in trash. Larger quantities shall carefully
take into consideration applicable DEA, EPA, and FDA
regulations. If possible return the pharmaceutical to the
manufacturer for proper disposal being careful to properly
label and securely package the material. Alternatively, the
waste pharmaceutical shall be labeled, securely packaged
and transported by a state licensed medical waste contractor
to dispose by burial in a licensed hazardous or toxic waste
landfill or incinerator. All federal, state, and local environmental
regulations must be observed.
Check Digit Verification of cas no
The CAS Registry Mumber 475-80-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,7 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 475-80:
(5*4)+(4*7)+(3*5)+(2*8)+(1*0)=79
79 % 10 = 9
So 475-80-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H9NO6/c18-16(19)10-6-12-15(23-7-22-12)14-9-4-2-1-3-8(9)5-11(13(10)14)17(20)21/h1-6H,7H2,(H,18,19)
475-80-9Relevant articles and documents
Total synthesis of the aristolochic acids, their major metabolites, and related compounds
Attaluri, Sivaprasad,Iden, Charles R.,Bonala, Radha R.,Johnson, Francis
, p. 1236 - 1242 (2014)
Plants from the Aristolochia genus have been recommended for the treatment of a variety of human ailments since the time of Hippocrates. However, many species produce the highly toxic aristolochic acids (AAs), which are both nephrotoxic and carcinogenic. For the purposes of extensive biological studies, a versatile approach to the synthesis of the AAs and their major metabolites was devised based primarily on a Suzuki-Miyaura coupling reaction. The key to success lies in the preparation of a common ring-A precursor, namely, the tetrahydropyranyl ether of 2-nitromethyl-3-iodo-4,5-methylendioxybenzyl alcohol (27), which was generated in excellent yield by oxidation of the aldoxime precursor 26. Suzuki-Miyaura coupling of 27 with a variety of benzaldehyde 2-boronates was accompanied by an aldol condensation/elimination reaction to give the desired phenanthrene intermediate directly. Deprotection of the benzyl alcohol followed by two sequential oxidation steps gave the desired phenanthrene nitrocarboxylic acids. This approach was used to synthesize AAs I-IV and several other related compounds, including AA I and AA II bearing an aminopropyloxy group at position-6, which were required for further conversion to fluorescent biological probes. Further successful application of the Suzuki-Miyaura coupling reaction to the synthesis of the N-hydroxyaristolactams of AA I and AA II then allowed the synthesis of the putative, but until now elusive, N-acetoxy- and N-sulfonyloxy-aristolactam metabolites.
