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1239474-57-7

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1239474-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239474-57-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,4,7 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1239474-57:
(9*1)+(8*2)+(7*3)+(6*9)+(5*4)+(4*7)+(3*4)+(2*5)+(1*7)=177
177 % 10 = 7
So 1239474-57-7 is a valid CAS Registry Number.

1239474-57-7Downstream Products

1239474-57-7Relevant articles and documents

THIN FILM AND COMPOUND USED IN THE SAME

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Page/Page column 36, (2013/02/28)

To provide a novel material exhibiting excellent light-emitting characteristics using a heavy metal element having relatively abundant reserve. A thin film containing a compound of Formula (1): wherein Ar1 and Ar2 are each independently a C3-30 aromatic ring; R1 and R2 are a substituent; a and b are each independently an integer of 0 to 12, wherein when a is 2 or more, each R1 is optionally different from each other and two R1 are optionally bonded with each other to form a ring structure, and when b is 2 or more, each R2 is optionally different from each other and two R2 are optionally bonded with each other to form a ring structure; A1 is any of direct bond, —O—, —S—, —S(═O)—, —S(═O)2—, —PR3—, —NR4—, and —C(—R5)2—; R3 is a hydrogen atom or a substituent; R4 is a hydrogen atom or a substituent; R5 is a hydrogen atom or a substituent and two R5 are optionally different from each other; E1 is a monovalent group having 50 or less carbon atoms; L1 is a ligand having 50 or less carbon atoms; c is an integer of 0 to 3, wherein when c is 2 or more, each L1 is optionally different from each other; and each combination of a combination of E1 and Ar1 and a combination of E1 and Ar2 optionally forms a bond; and when c is 1 to 3, each combination of a combination of L1 and E1, a combination of L1 and Ar1, a combination of L1 and Ar2, and a combination of L1 and L1 optionally forms a bond.

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