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78277-39-1

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78277-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78277-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,2,7 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78277-39:
(7*7)+(6*8)+(5*2)+(4*7)+(3*7)+(2*3)+(1*9)=171
171 % 10 = 1
So 78277-39-1 is a valid CAS Registry Number.

78277-39-1Downstream Products

78277-39-1Relevant articles and documents

Some 7-Substituted 4-(Trifluoromethyl)coumarins

Bissell, Eugene R.,Larson, D. Kristin,Croudace, Michael C.

, p. 348 - 350 (2007/10/02)

Preparation and spectral properties are given for 13 substituted 4-(trifluoromethyl)coumarins (7-hydroxy, 7,8-dihydroxy, 6-ethyl-7-hydroxy, 6-benzyl-7-hydroxy, 7-methoxy, 7-methyl, 7-amino, 7-(ethylamino), 7-(benzylamino), 7-anilino, 7-, 7-, and 2(1H)-isoindolyl).Three 7-(acylamido)-4-(trifluoromethyl)coumarins (acetyl, benzoyl, and bromoacetyl) were also prepared as well as two new phenol precursors, 3-phenol and 2-(3-hydroxyphenyl)-1H-isoindole.

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