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70691-68-8

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70691-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70691-68-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,6,9 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 70691-68:
(7*7)+(6*0)+(5*6)+(4*9)+(3*1)+(2*6)+(1*8)=138
138 % 10 = 8
So 70691-68-8 is a valid CAS Registry Number.

70691-68-8Downstream Products

70691-68-8Relevant articles and documents

Heterocyclic effect for optical properties of naphthoquinone-based pigment: 2-methyl-3-heteroarylthio-1,4-naphthalenedione

Sako, Akihiro,Okuda, Koji,Tajima, Nobuo,Kuroda, Reiko,Imai, Yoshitane

, p. 2068 - 2073 (2017)

Three novel naphthoquinone-based heterocyclic pigments, 2-methyl-3-[(1-methyl-1H-imidazol-2-yl)thio-1,4-naphthalenedione, (4-methyl-4H-1,2,4-triazol-3-yl)thio-1,4-naphthalenedione, and (1-methyl-1H-tetrazol-5-yl)thio]-1,4-naphthalenedione, are synthesized, and their optical properties in both solution and solid states are investigated. Depending on the heteroarylthio ring in the pigment, variation in optical properties is observed, e.g. characteristic colours for each pigment in the solution and solid states. The achiral pigment containing the 1-methyl-1H-tetrazol-5-yl ring exhibits a chiral space group and a CD signal in the solid state.

Silver-Catalyzed Direct Thiolation of Quinones by Activation of Aryl Disulfides to Synthesize Quinonyl Aryl Thioethers

Zhang, Cheng,McClure, Jesse,Chou, C. James

, p. 4919 - 4927 (2015/06/02)

A silver-catalyzed coupling reaction of quinones with aryl disulfides for the synthesis of quinonyl aryl thioethers is described. In the presence of AgOAc (0.2 equiv)/dppp (0.24 equiv) as the catalyst, (NH4)2S2O8/sub

Synthesis and selective anticancer activity of organochalcogen based redox catalysts

Doering, Mandy,Ba, Lalla A.,Lilienthal, Nils,Nicco, Carole,Scherer, Christiane,Abbas, Muhammad,Zada, Abdul Ali Peer,Coriat, Romain,Burkholz, Torsten,Wessjohann, Ludger,Diederich, Marc,Batteux, Frederic,Herling, Marco,Jacob, Claus

supporting information; experimental part, p. 6954 - 6963 (2010/12/25)

Many tumor cells exhibit a disturbed intracellular redox state resulting in higher levels of reactive oxygen species (ROS). As these contribute to tumor initiation and sustenance, catalytic redox agents combining significant activity with substrate specif

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