307-31-3 Usage
General Description
Perfluorooctanamide (PFOA) is a man-made chemical that belongs to a group of substances called per- and polyfluoroalkyl substances (PFAS). It has been used to make various products resistant to water, oil, grease and stains, including non-stick cookware, food packaging, and stain-resistant carpeting. PFOA is known to persist in the environment and in the human body, and has been linked to various health effects, including reproductive and developmental problems, liver and kidney damage, and an increased risk of certain cancers. Due to its potential health risks and environmental persistence, many countries and regulatory bodies have taken steps to limit or phase out the use of PFOA and other PFAS in various consumer products.
Check Digit Verification of cas no
The CAS Registry Mumber 307-31-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,0 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 307-31:
(5*3)+(4*0)+(3*7)+(2*3)+(1*1)=43
43 % 10 = 3
So 307-31-3 is a valid CAS Registry Number.
InChI:InChI=1/C8H3F15N2/c9-2(10,1(24)25)3(11,12)4(13,14)5(15,16)6(17,18)7(19,20)8(21,22)23/h(H3,24,25)
307-31-3Relevant articles and documents
FLUORINATED IMIDOYLAMIDINES VULCANIZING AGENTS
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Page/Page column 31, (2008/06/13)
The invention provides a compound and, tautomeric forms thereof having the formula (I): wherein Rf1 is selected from the group consisting of hydrogen, a straight chain, branched secondary or branched tertiary C1-C20 perfluoroalkyl group optionally containing ether or thioether linkages and C1-C10 perfluoroalicyclic group optionally containing ether or thioether groups; Rf2 is a straight or branched C1-C20 perfluoroalkylene group optionally substituted with ether and thiother linkages; and X is selected from the group consisting of fluorine and formula (II). . The invention also provides perfluoroelastomeric compositions cured with the perfluoroimidoylamidines of the invention as well as combinations of perfluoroimidoylamidines and other curing agents.
