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2-Methyl-4-o-tolyl-4H-benzo[h]chromen-4-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

135979-04-3

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135979-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135979-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,7 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135979-04:
(8*1)+(7*3)+(6*5)+(5*9)+(4*7)+(3*9)+(2*0)+(1*4)=163
163 % 10 = 3
So 135979-04-3 is a valid CAS Registry Number.

135979-04-3Downstream Products

135979-04-3Relevant academic research and scientific papers

REACTIONS WITH 2-METHYL-NAPHTHO-PYRAN-4-ONE AND RELATED SUBSTANCES

Soliman, Ahmed Youssef,Mahmoud, Mahmoud Refai,Bakeer, Hadeer Mohamed

, p. 345 - 354 (2007/10/02)

2-Methyl-naphthopyran-4-one was condensed with various aromatic aldehydes.The 2-styryl derivatives IIa-e allowed to react with maleic anhydride, yielding the tetrahydroxanthone derivatives III.The reactivity of Ia, b and IIIa-d towards hydrazine hydrate, hydrazine derivatives, amines and Grignard reagents was investigated.The IR, and H1 NMR of the products are discussed.

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