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[CAS Name] Hydroxy Propyl Methyl Cellulose

[Formula] C56H108O30

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[CAS Name]Hydroxy Propyl Methyl Cellulose
[Alias]HPMC; (2R,3R,4S,5R,6S)-3,4,5-trimethoxy-2-(methoxymethyl)-6-[(2R,3R,4S,5R,6R)-4,5,6-trimethoxy-2-(methoxymethyl)tetrahydropyran-3-yl]oxy-tetrahydropyran; 1-[[(2R,3R,4S,5R,6S)-3,4,5-tris(2-hydroxypropoxy)-6-[(2R,3R,4S,5R,6R)-4,5,6-tris(2-hydroxypropoxy)-2-(2-hydroxypropoxymethyl)tetrahydropyran-3-yl]oxy-tetrahydropyran-2-yl]methoxy]propan-2-ol
[Number]9004-65-3
[EINECS]
[Formula]C56H108O30
[Molecular weight]1261.4387

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Arshine Group Co.,Ltd.

Product name	HPMC 15CPS
Shelf life	Two years
Inspection Standard	USP32
Items	Specifications	Results
Appearance	White to slightly off-white fibrous or granular powder	White powder
Identification A To E	Complies	Conforms
Methoxy	28.0-30.0%	28.4%
Hydroxypropoxy	7.0-12.0%	7.2%
Viscosity	12-18mpa.s	15.8mpa.s
Loss on drying	≤5.0%	3%
Residue on ignition	≤1.5%	1.2%
PH	5.0-8.0	6.3
Heavy Metals	≤10PPM	<10PPM
Arsenic	≤2PPM	<2PPM
Bacterium	≤1000/g	<1000/g
Mold	≤100/g	<100/g
Conclusion	It conforms to USP32.

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Arshine Group Co.,Ltd.

Product name	HPMC 50CPS
Shelf life	Two years
Inspection Standard	USP
Items	Specifications	Results
Appearance	white or off-white fibrous or granular powder	White powder
Hydroxypropyl content %	7.0—12.0	7.7
Methoxyl content %	28.0-32.0	28.6
Loss on drying %	5.0max	3.5
Residue on ignition %	1.5max	1.07
pH @25℃	5.0-7.5	6.6
Insolubles in Water %	0.5max	0.24
Total bacteria %	1000max	377
Total Mold %	70max	55
Heavy metal ppm	20max	≤20
Viscosity cps	40-60	53
100 M %	98min	≥98
Conclusion:	In conformity with USP

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Zhongbao Chemicals Co., Limited.

Hydroxy Propyl Methyl Cellulose(HPMC)

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