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73869-98-4

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73869-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73869-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,6 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 73869-98:
(7*7)+(6*3)+(5*8)+(4*6)+(3*9)+(2*9)+(1*8)=184
184 % 10 = 4
So 73869-98-4 is a valid CAS Registry Number.

73869-98-4Relevant articles and documents

Synthesis and photophysical characteristics of 2,3,12,13-tetraalkylbacteriochlorins

Zhang, Shaofei,Kim, Han-Je,Tang, Qun,Yang, Eunkyung,Bocian, David F.,Holten, Dewey,Lindsey, Jonathan S.

, p. 5942 - 5956 (2016/07/16)

Bacteriochlorins absorb strongly in the near-infrared spectral region and hence are of great interest across the field of photochemistry. The established de novo self-condensation of a dihydrodipyrrin-acetal has afforded stable bacteriochlorins bearing a

Tetrapyrrole Biosynthesis, 9. - Synthesis of Protected Nor- and Homoporphobilinogen

Franck, Burchhard,Wegner, Christian,Bringmann, Gerhard,Fels, Gregor

, p. 253 - 262 (2007/10/02)

The monopyrroles norporphobilinogen (3) and homoporphobilinogen (4) , being derivates of the biogenetic porphyrin precursor porphobilinogen (1), are of topical interest for biomimetic porphyrin syntheses.Syntheses were developed for the protected " depot

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