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Chemical Name:N4-Methyl-2,4-pyridinediamine
CAS.NO:155617-64-4
Synonyms:Pyrimido[5,4-b][1,4]oxazepine-6,8(7H,9H)-dione,2-amino-4-methyl;2-amino-4-methylaminopyridine
Molecular Formula:C6H9N3
Molecular Weight:123.15600
HS Code:
Physical and Chemical Properties:
Melting point:N/A
Boiling point:N/A
Density:N/A
Index of Refraction:
PSA:51.67000
Exact Mass:123.08000
LogP:0.70860
Material Safety Information (Applicable for Hazard Chemicals)
RIDADR:
Packing Group:
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Related News: Alira is one of many in the CRO space to ink deals in recent months. Altasciences acquired preclinical CRO Calvert Laboratories in May, weeks after itself being bought out by Novo Holdings, and a few months after buying early-stage CRO WCCT Global. N4-Methyl-2,4-pyridinediamine manufacturer Bristol-Myers Squibb (BMS) recently acquired Celgene, for example, which had the highest proportional R&D spend. N4-Methyl-2,4-pyridinediamine supplier The vaccine also proved safe during the two-year trial, in which eleven doses were administered to randomly chosen patients with mild dementia. People who received the vaccine, known as AADvac1, experienced about the same numbers of side effects and adverse events as those who were given a placebo. N4-Methyl-2,4-pyridinediamine vendor Alira is one of many in the CRO space to ink deals in recent months. Altasciences acquired preclinical CRO Calvert Laboratories in May, weeks after itself being bought out by Novo Holdings, and a few months after buying early-stage CRO WCCT Global. N4-Methyl-2,4-pyridinediamine factory We found over half the products we tested contained elevated fluorine levels,” Bruton said.
The cosmetic categories that had the highest percentage of 213 high fluorine products were foundations (63%), eye products (58%), mascaras (47%), and lip products (55%), the study found.
Even more concerning was that cosmetics containing high levels of fluorine more often than not failed to disclose any PFAS chemicals on their labels, Bruton noted.
Further analysis of 29 cosmetics with high fluorine levels revealed that they contained between four and 13 specific PFAS chemicals, researchers found. However, only 1 of the 29 products listed PFAS as an ingredient on the product label.
“Even if a consumer is doing their due diligence and trying to avoid harmful chemicals by reading labels, our work is showing that these harmful chemicals are often not disclosed,” Bruton said.
Despite this, Bruton recommends that consumers who want to limit their exposure to PFAS read the labels anyway, to at least avoid products where the chemicals are accurately listed.
High levels of fluorine were frequently found in products advertised as “long-lasting” and “wear-resistant,” which could provide another clue for discerning consumers.
But in the end, there’s not much consumers can do to solve the problem.
“It’s important that the government step up to regulate ingredients in cosmetics with more stringency,” Bruton said. “It’s also time the cosmetics industry steps up and begins efforts to move away from this class of chemicals.
The cosmetic categories that had the highest percentage of 213 high fluorine products were foundations (63%), eye products (58%), mascaras (47%), and lip products (55%), the study found.
Even more concerning was that cosmetics containing high levels of fluorine more often than not failed to disclose any PFAS chemicals on their labels, Bruton noted.
Further analysis of 29 cosmetics with high fluorine levels revealed that they contained between four and 13 specific PFAS chemicals, researchers found. However, only 1 of the 29 products listed PFAS as an ingredient on the product label.
“Even if a consumer is doing their due diligence and trying to avoid harmful chemicals by reading labels, our work is showing that these harmful chemicals are often not disclosed,” Bruton said.
Despite this, Bruton recommends that consumers who want to limit their exposure to PFAS read the labels anyway, to at least avoid products where the chemicals are accurately listed.
High levels of fluorine were frequently found in products advertised as “long-lasting” and “wear-resistant,” which could provide another clue for discerning consumers.
But in the end, there’s not much consumers can do to solve the problem.
“It’s important that the government step up to regulate ingredients in cosmetics with more stringency,” Bruton said. “It’s also time the cosmetics industry steps up and begins efforts to move away from this class of chemicals.
