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172995-51-6

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172995-51-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172995-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,9 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 172995-51:
(8*1)+(7*7)+(6*2)+(5*9)+(4*9)+(3*5)+(2*5)+(1*1)=176
176 % 10 = 6
So 172995-51-6 is a valid CAS Registry Number.

172995-51-6Relevant articles and documents

BENZYL COMPOUND

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Paragraph 0138-0141, (2019/02/05)

The purpose of the present invention is to provide a protecting group which improves the solubility of a compound having a functional group protected with the protecting group in an organic solvent and which is easily separated and purified after a reaction with avoiding solidification or insolubilization. Provided is a benzyl compound represented by Formula (1) where X1 represents —CH2OR14 (where R14 represents a hydrogen atom, a halogenocarbonyl group, or an active ester-type protecting group), —CH2NHR15 (where R15 represents a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms, or an aralkyl group), a halogenomethyl group, a methyl azide group, a formyl group, or an oxime; and at least one of R1, R2, R3, R4, and R5 is a group represented by Formula (2), and the remainders each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, where R6 represents a linear or branched alkylene group having 1 to 16 carbon atoms; X2 represents O or CONR16 (where R16 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms); and A represents a group represented by Formula (3), (4), (5), (6), (7), (8), (9), (10), (11), (12), or (13).

Synthesis of long-chain fatty acid derivatives as a novel anti-Alzheimer's agent

Zhang, Hong-Yan,Yamakawa, Yu-Ichiro,Matsuya, Yuji,Toyooka, Naoki,Tohda, Chihiro,Awale, Suresh,Li, Feng,Kadota, Shigetoshi,Tezuka, Yasuhiro

, p. 604 - 608 (2014/01/23)

In order to develop new drugs for Alzheimer's disease, we prepared 17 fatty acid derivatives with different chain lengths and different numbers and positions of double bonds by using Wittig reaction and stereospecific hydrogenation of triple bonds as key reactions. Among them, (4Z,15Z)- octadecadienoic acid (10) and (23Z,34Z)-heptatriacontadienoic acid (16) showed the most potent neurite outgrowth activities on Aβ(25-35)-treated rat cortical neurons, which activities were comparable to that of a positive control, NGF. Both fatty acids 10 and 16 possess two (Z)-double bonds at the n-3 and n-14 positions, which might be important for the neurite outgrowth activity.

Efficient fully functionalized photorefractive polymethacrylates with infrared sensitivity and different spacer lengths

Engels, Christiaan,Van Steenwinckel, David,Hendrickx, Eric,Schaerlaekens, Mark,Persoons, Andre,Samyn, Celest

, p. 951 - 957 (2007/10/03)

A series of photorefractive polymethacrylates, containing a Disperse Red type chromophore and carbazole as charge transport agent with various spacer lengths, was synthesized and characterized. The photorefractive effect of these materials was studied by

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