Cas:32305-98-9 (-)-diop manufacturer & supplier

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(-)-diop

Chemical Name:(-)-diop
CAS.NO:32305-98-9
Synonyms:EINECS 250-984-2;(2R,3R)-(-)-1,4-Bis(diphenylphosphino)-2,3-O-isopropylidene-2,3-butanediol;(2R,3R)-(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane;MLV 3077D;(((4R,5R)-2,2-Dimethyl-1,3-dioxolane-4,5-diyl)bis(methylene))bis(diphenylphosphine);MFCD00014107;(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane;(−)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane
Molecular Formula:C31H32O2P2
Molecular Weight:498.53200
HS Code:2932999099

Physical and Chemical Properties:
Melting point:88 – 90ºC
Boiling point:590.3ºC at 760mmHg
Density:N/A
Index of Refraction:
PSA:45.64000
Exact Mass:498.18800
LogP:5.77230

Material Safety Information (Applicable for Hazard Chemicals)
RIDADR:NONH for all modes of transpor
Packing Group:


Contact us for information like EINECS 250-984-2 chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight,(−)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane physical properties,toxicity information,customs codes,safety, risk, hazard and MSDS, CAS,cas number,(((4R,5R)-2,2-Dimethyl-1,3-dioxolane-4,5-diyl)bis(methylene))bis(diphenylphosphine) Use and application,MLV 3077D technical grade,usp/ep/jp grade.


Related News: Secretary of Health Francisco Duque said authorities are working with the Chinese embassy to respectfully handle the remains of the man while following international protocol to contain the disease. (-)-diop manufacturer 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. (-)-diop supplier Some experts said that in the research and development of chemical medicine, the possibility of large medicines is getting smaller and smaller, and with the popularization of precision treatment, small medicines (high-efficiency medicines) are being introduced more and more. (-)-diop vendor The pharmaceutical industry is related to the national economy and the people’s livelihood. The entire upstream and downstream areas involve all aspects of the national economy. Our government has a long-term direct or indirect policy preference for this. (-)-diop factory Secretary of Health Francisco Duque said authorities are working with the Chinese embassy to respectfully handle the remains of the man while following international protocol to contain the disease.